A few thoughts on game mechanics

I kinda already expect the first one.

Same with the second one (cause L2's sieges had mechanics that changed respawn availability throughout the siege).

And I expect pvping to get turned off in the node centers, cause waaay too many people will complain about that for it to not change. Would definitely love me some open world arenas, just as L2 had them. Even better if people could use their freehold to provide this as a service to other people, in a form of a training location.

I don't think I did my usual parsing of the perspectives on the length of the day/night, but there's a Feedback Thread somewhere (look for Threads by Community Team member Vaknar or search "Dev Discussion").

Sieges in Alpha-1 did have quite a lot of tactics involved and the "Zerg Rush" doesn't quite work because of some of the AoE mechanics. It might still be true that the larger will win, but it didn't feel like that due to the lower TTK. You could do a lot more if you positioned well, similar to a big teamfight in the endgame of a MOBA match, if you're familiar.

There's an arena, but since nothing in particular stops you from dueling in the streets, we will certainly see some such behavior going on, and I doubt that is changing due to their unwillingness to make 'Safe Zone' style things.