I think it's a very good thing that the game is designed on unreal engine 4 for a lot of reasons, and especially to see the videos. The maps will be easier to create, the game will be more fluid (in any case I hope). The console (F10) will be easier to use with autocomplete text, maybe more players on the servers ... I can not wait to test it out (or maybe betas)
I have been subscribed to the S&Box website waiting for new dev blogs. (Last one was in NOV 2017)
I really am excited about this game. Running on UE4 means more performance. Will probably even run my own server and spend another 3500 hours on it as I did on gmod