First of all, nothing is ever set in stone.

Second of all, the first few points you make are all issues that need to be resolved anyway before SE tries to make a PR push to save this game.

Third, you have over a month to select your world. If you're on a month long+ vacation, I'd say you have it too good to be fretting over your FFXIV server. Military deployments are a little different, but that's really part of the package when you choose to join the armed forces. If giving up your FFXIV server is the greatest sacrifice you have to make for your country during your deployment, then consider yourself luckier than most.

I do sympathize with the people who feel that their server is being "destroyed", but honestly it's better to just get over it and adapt.