My advice is to lower your expectations (so that you will be truly thrilled when it is released, and the game exceeds your expectations) and to mentally allow more time for the game to be released. I mean if you can wait 4 weeks, what is another two or four more, right? In the meantime, SB Pro PE 3.x has a lot of excellent solo and co-op gameplay, yeah?
This paragraph of mine is not to poke fun at eSim games or anything. After all, coding a major release of any game is a daunting task, what with all the testing involved. This paragraph is also not meant to dampen anyone's spirits and hopes. It's a bit like that "guess the number of sweets in jar" contest kind of thing. The one who guesses the closest answer wins something. Here's the 'contest' I propose. The one who guesses the release date of SB Pro PE 4.0 that is closest to the actual date of release will win...something. Maybe a virtual pat on the back or bragging rights or something tangible, softcopy or hardcopy. Yet to be decided.
Anyway, here's my guess. I humbly guess that SB Pro PE 4.0 will officially be released by eSImGames on 13th August 2016 which is in 2 months time. That date, for me, means means that eSImGames has made it ready with minimum bugs and to the satisfaction of the SteelBeasts community. If you can't wait that long, then you are free to lucky-guess an earlier release date. I think that it will be interesting to see what date you propose and to see who the eventual "winner" is. Whatever be the case, in the end everyone wins when it is released.