It was originally hoped that the former Elmgrove Primary School could re-open as a special school in September 2026.
The EA suggests cost-saving measures as it warns school gas and electricity bills are set to rise.
Departmental officials due to be questioned about integrated education on Wednesday will now not appear.
New research suggests proportionally fewer students leave Northern Ireland than some other parts of the UK.
A college spokeperson says the deadlock over a Stormont budget was partially responsible.
About 2,500 student places will be cut across Belfast Met in a bid to save money.
All five of Northern Ireland's teaching unions will take part in the action from Monday, 28 September.
BBC Radio Ulster's Talkback presenter William Crawley discusses changes to GCSEs and A-levels in Northern Ireland.
Guidelines stipulate that school uniform policies for the 2027/28 school year onwards must include the option for girls to wear trousers.