No EU member state has triggered Article 50 or launched formal withdrawal procedures ahead of 2027, sustaining trader consensus around a 97.7% probability that none will exit. Post-Brexit economic and security assessments have reinforced broad political and public backing for continued membership across most capitals, with only fringe parties in countries such as Poland or Denmark floating EEA-style alternatives that lack governing support or electoral traction. Recent shifts, including Hungary’s post-election pivot toward EU fund access and rule-of-law alignment, further underscore institutional incentives to remain inside the bloc. Withdrawal remains procedurally demanding, typically requiring notification, multi-year negotiations, and national constitutional steps that compress poorly into the remaining timeline. Late developments capable of altering odds would need to include an abrupt governing coalition collapse, a binding referendum outcome, or an unprecedented external shock severe enough to override established member-state incentives.