A pre-enlargement policy document, published on Tuesday, 6 October after years of delays, put forward a framework allowing up to 15 years of post-accession oversight mechanisms to govern the conduct of newly joined member states. Drawn up at the European Council's request from June 2024, the package had been expected by spring 2025, though a succession of postponements followed as member-state governments worked through politically sensitive considerations.

Four nations positioned as leading candidates for EU entry — Montenegro, Albania, Moldova, and Ukraine — are each set to receive an accession roadmap before the month is out. European Commission President Ursula von der Leyen put forward the case that bringing new members into the bloc has become a matter of geopolitical necessity, a position she tied to the ongoing conflict in Ukraine and a broader reshaping of the world order. In the EU's stated view, enlargement serves as a vehicle for spreading democratic governance and deepening the reach of its internal market.

Regulatory safeguards put forward by the commission address the possibility that newly admitted members might move away from established EU standards. Under the commission's draft terms, countries seeking membership would be bound — for a period yet to be defined — by a pledge to withhold any objection to future EU enlargement decisions rooted in bilateral disputes. According to Marta Kos, the EU's enlargement commissioner, participation in the pledge would remain a matter of choice rather than obligation.

Built into EU membership terms for a 15-year window after a country joins, one provision gives the bloc a mechanism to act when a member state falls short of the treaty's Article 2 obligations on the rule of law and human rights. Among the enforcement tools that can be brought to bear is the loss of voting rights within the Council. Comparable safeguards exist under what is known as the Article 7 procedure, yet putting those provisions into practice has proved consistently difficult, as the experience of Hungary during Viktor Orbán's tenure as prime minister illustrated.

Under the proposed framework, activation of the protective measures would depend on formally substantiated requests put forward by either member states or the Commission. A qualified majority vote within the Council would serve as the mechanism for bringing the measure into effect.

Agon Maliqi, a policy analyst from Kosovo affiliated with The Atlantic, argued that a 15-year safeguard arrangement would relegate new member states to a subordinate standing within the bloc, effectively dividing EU membership into two distinct tiers. Kos echoed that concern, telling reporters on Tuesday that unequal membership terms were not acceptable. The commissioner also found it difficult to address a reporter's question about why the new protections were necessary given that Article 7 of the EU treaty already provides a mechanism to suspend member rights in cases of grave treaty violations — a question that followed remarks describing the measures as a form of self-protection, likened to an insurance policy.

Protections already in place covering the economy, the internal market, and justice and home affairs are recommended by the commission to be maintained well past the three-year mark. Protective provisions for existing member states — covering areas such as labour conditions and welfare entitlements, as well as judicial cooperation — were built into the terms under which Croatia entered the EU in 2013, giving those nations the ability to apply temporary restrictions on certain cross-border arrangements. The commission has put forward a shift from a fixed three-year window to an open-ended duration for that protective status.

Alongside this, the commission put forward expanded use of passerelle clauses within the Council, a mechanism that would allow qualified majority voting to replace the unanimity threshold across areas including sanctions, tax fraud prevention, and energy-related fiscal policy. Using qualified majority voting at interim points in the accession process has been put forward as a way to prevent individual countries from stalling a candidate's path toward membership. The commission has also been advocating for wider use of enhanced cooperation — a mechanism that allows at least nine member states to act jointly on specific matters, with financial backing for Ukraine cited as one example.

Five countries — France, Germany, Belgium, the Netherlands, and Luxembourg — put forward an informal document in June 2026 setting out a range of possible approaches to future EU enlargement treaties, among them proposals to place short-term restrictions on the voting rights of newly admitted member states, with particular attention to decisions requiring unanimous agreement. German Chancellor Friedrich Merz put forward a call to fellow EU leaders for a faster pathway to bring Ukraine into the bloc. Member states chose not to adopt a commission proposal that would have brought Ukraine into the bloc ahead of completing the required reforms as a route to faster EU accession.

The EU has indicated its readiness to admit four candidate nations into the bloc. Montenegro's membership path is on track to advance within the current calendar year, while Albania and Moldova are each working through their own processes on a timeline stretching across the next several years. Adjustments to Ukrainian law are under way to bring domestic statutes into line with the standards the bloc demands for membership. Scheduled for 28 October, the body's 2026 enlargement package will lay out accession roadmaps covering all four nations.

Among the other countries seeking EU membership, Bosnia and Herzegovina faces obstacles rooted in its internal political fragmentation; Kosovo's path forward is constrained by the non-recognition of its statehood by a number of EU members; Serbia has experienced a renewed emphasis on nationalist sentiment within its political landscape; and North Macedonia remains entangled in an unresolved dispute with Bulgaria over bilateral matters. Both Georgia and Turkey hold candidate status, though accession talks for each country have stalled amid concerns about democratic governance.