Regular users of JER may be interested in a rumour I picked up earlier this month. As you know, the BA flight used to use Gate 3 with access to the Gate direct from the Lounge for boarding. In recent times, Gate 2 seem to be the standard option.

Rumour = the space used as Gate 3 may possibly be taken over as an extension to the BA Lounge.

Whether that's for a separate FLounge, or just additional space for what can be a rather crowded Terraces, or just a rumour without substance is an interesting question