A collab between your very dear HoloEN and Vshojo is very likely to happen and here's why:
Ever had that celebrity you really like collab with that other celebrity that you didn't like at all? Wondered why, then it happens, it's not so bad, and everyone moves on?
It's a win win situation as long as shit doesn't hit the fan.* A bunch of HoloEN fanbois don't watch Vshojo and vice versa. They both have big followings and it's very likely some will ''get to know'' the other party better through the collab and thus both chuubas get new followers.
* Yes you read this and thought ''but shit will hit the fan". It would be very funny to see but it most likely won't. The collab will probably be with the more tame girls from Vshojo and won't include sex themes, excessive profanity or anything scandalous. This is guaranteed because both are, at this point, professional performers. Maybe not Zentraya or the likes, I have no clue about those but I've seen a few clips of Nyanners, Melody and Iron. These girls are not "really" stupid they amass huge followings and make big bucks, that requires some talent. They know the HoloEN fanbase and will keep it to that level. So in the end both parties will shake hands and go do their own shit with a bunch of good PR. followers and thus potential $$$ on their hands. The managers know this, the talents know this but obviously a bunch of you spergs don't, so here it is, spelled out in the most ELI5 way.
And if you aren't convinced yet, Vshojo girls already collabed with very prominent seiso chuubas like Kizuna Ai and Siro and exactly the above happened.