Matt said it in the Q&A, it's only logical that once the new contacts arrive, the unlock trees would shift, so these new contacts would unlock stuff like the 3-slot Vegas and Fresno, and Birth/Ernst would unlock the 4 slot variants
Guys, the purpose of this event is to help newcomers and newbs to rack some JT's and be able to purchase some JT guns and maybe boost the already low pop, you want anarchy or new missions but if LO was to do it, then there'd be complaints about poor matchmaking or something