As zkSNACKs is no longer part of the project, those that abandoned it previously because of the implementation of blockchain analysis, will probably return to it at some stage (if they already have not) as they become aware Wasabi Wallet has nothing to do with zkSNACKs.
?
Who will "return"?
Because it's an actual Open Source project, ANYONE is welcome to contribute code during their spare time though, no? Including former zkSNACKs employees whether they choose to be anonymous developers, or actually let everyone know who they are and their past affiliation with zkSNACKs.
I believe Bitcoin Core developers could receive grants from different organizations and from Bitcoin companies/services as well.