I really hope we don't get an Era PvP mode. Nothing about that sounds necessary or fun compared to updating game modes that already exist. CG needs to stop being like most tech companies that keep pushing the new features and modes no one is asking for and give some love to currently existing features and game modes first so we can start enjoying those again.
I'm hoping we get a TW update. My guild doesn't put any effort into winning TW since second place isn't that much worse than first reward-wise. I'm not holding my breath, but I'm hoping some older characters get some updates so they're more useful and worth pursuing by giving some characters more abilities, zetas, and or omicrons. I'm still waiting on a leader ability for Holdo...the only capital ship pilot without one.
Between Maul Shadow Lord and the Mandalorian and Grogu movie I'm expecting the next era will likely be focused on one of those, likely M&G since we just got Spider Maul fairly recently. And if that movie isn't era-based then my prediction is it will be a possibility for the next GL - Jedi Master Grogu, anyone?
Maybe they'll announce the next capital ship, and perhaps there's a chance that the next era will be ship focused to help fill out some rosters. My guess is it would be between GAS and Trench if that were the case.
Freebies will likely be some shards of some of the newer characters and some materials to help us gain a couple of levels for someone. Maybe enough to r10 a character would be nice.