I've said before that I really like ER Prime, and SS86 Prime would have to be really special to be worth getting. I'll of course be watching to see the full reveal, what he looks like in other settings, and what else he comes with. But just going off of this picture, he's nowhere close to clearing that bar.
I'd be more likely to go for Dramatic Capture as a potential upgrade, but he's more of a sidegrade to me. I like the legs being all blue, but I don't care for replacing the silver with white.
For what it's worth, I also passed on MP-44 since I like MP-10 better.