Not really, but since OP is wondering if this place will become more toxic from the death of 4chan, I say no it wouldn't because the bulk of the groups that use 4chan all have alternatives to 4chan that are honestly better than 4chan.
If you were a massive Steven Universe fan or any cartoon of the month fan, then clearly all the good content is going to be on Tumblr and you could even chat with these creators of fan content since I'd imagine 4chan and it's reputation prevents some people from going there. Plus more dedicated fandoms like bronies and furries have their own chans.
And all the forums and Steam groups for vidya means that all the mainstream gaming talk can just move other there.
This chan just focuses on a niche game and is too slow for a typical shitposter. I'd bet a large number of 4chan users don't even know about this place's existence.