1. Correct. Sylvanas would essentially restore to her time prior to the pact.

2. We are not operating quite that literally in terms of game mechanics. Think of them as general portal spells -- so mages would be able to portal to locations theyve already seen or been to inside the setting, but not outside. So so ce Orgrimmar doesn't exist in this time period, the spell would simply fizzle.

Since druids are only able to teleport to Moonglade due to their connection to it, they are not able to teleport here at all.