The European Union is currently evaluating modifications to its accession protocols to accommodate new member states and considering the procedural requirements for a potential return of the United Kingdom.

歐盟目前正在評估其入盟協議的修改方案，以接納新會員國，並考慮英國潛在回歸的程序要求。

The European Union is presently transitioning toward a 'staged accession' model to mitigate institutional paralysis. This strategic shift is exemplified by the establishment of a working group to draft Montenegro's accession treaty, which may serve as a prototype for future entrants. Central to this discourse is the proposal to implement temporary restrictions on veto rights for new members, specifically regarding foreign policy and taxation. Such measures are intended to prevent the obstruction of critical initiatives, such as financial support for Ukraine, by ensuring that new members do not impede the bloc's collective decision-making capacity. While some candidate nations have indicated a willingness to accept these limitations, others, including Montenegro, have expressed a preference for the traditional, non-transitional membership model.

歐盟目前正轉向「分階段入盟」模式，以緩解體制癱瘓的問題。建立一個起草黑山入盟條約的工作小組便體現了這一戰略轉移，這可能成為未來入盟國的原型。此論述的核心在於建議對新會員的否決權實施臨時限制，特別是在外交政策與稅務方面。此類措施旨在防止關鍵倡議（如對烏克蘭的財政支持）受阻，確保新會員不會妨礙歐盟整體的集體決策能力。雖然部分候選國表示願意接受這些限制，但其他國家（包括黑山）則表示更傾向於傳統的非過渡性會員模式。

Parallel to these enlargement efforts, a discourse has emerged regarding the hypothetical rapprochement between the United Kingdom and the EU. It is widely posited that any return would necessitate a formal application under Article 49, precluding a simplified reversal of the Brexit process. While the UK's prior membership and existing regulatory alignment might facilitate an accelerated timeline, significant political and economic hurdles remain. These include the potential requirement to adopt the euro—which would necessitate the surrender of independent monetary policy to the European Central Bank—and the acceptance of the European Court of Justice's jurisdiction and the principle of free movement. Furthermore, some analysts suggest that a return would require a multi-stage democratic mandate, involving both advisory and binding referendums to ensure a super-majority of public consent.

與這些擴張努力平行地，關於英國與歐盟之間假設性復交的討論也隨之而來。普遍認為，任何回歸都必須根據第49條提出正式申請，不能簡單地逆轉脫歐程序。雖然英國之前的會員身份及現有的監管協調可能會加速時間表，但仍存在顯著的政治與經濟障礙。其中包括可能要求採用歐元——這將導致必須將獨立貨幣政策移交給歐洲中央銀行——以及接受歐洲法院的管轄權和自由遷徙原則。此外，部分分析師建議，回歸需要多階段的民主授權，包括諮詢性和具約束力的全民公投，以確保獲得絕對多數的公眾同意。

The EU is currently testing new, tiered integration mechanisms with Montenegro while maintaining a strict Article 49 requirement for any potential UK re-entry.

歐盟目前正與黑山測試新的分層整合機制，同時對英國任何潛在的重新加入維持嚴格的第49條要求。