(For next time of course given Revolution is over lol): No matter what at this point we're gonna keep a backup community around for these kind of situations, since federation can't really be predicted.
Until we 'deprecate' this magazine (be it tomorrow or March 18th), lemmy.zip will stay open for posting as our backup so no matter what we got a place.
Assuming Fedia were to fully work out (doing tests) and become our new 'home', lemmy.zip will stay the backup (but probably with posting restricted to avoid spam until it's needed, if it's needed).
Should lemmy.zip become our new home but Fedia still works out, I'll make Fedia our backup community instead so we're still covered (even if it probably won't be needed). If Fedia doesn't work out I'll figure out a different backup community regardless lol.