Short answer- no one outside the dev team knows
Longer answer- There's a lot of work involved in revamping the core tech of bases to correct all the flaws in the original version of Base PvP. They won't simply fix a few bugs just so people can practice raid again. If they're gonna do it, they will do it from the ground up, and implement a system and good reasons to Base Raid along with the changes.
Bases are the team's biggest failure to date. They won't want to repeat the failure by doing things half way. That means it's safe to predict we won't hear anything until we hear what their plans are for after Going Rogue. I'm hoping they talk a little about future issues when we celebrate the 6th anniversary in May.
"Null is as much an argument "for removing the cottage rule" as the moon being round is for buying tennis shoes." -Memphis Bill
Are base raids ever coming back? Am i the only one that misses them?