First of all, all the information you are about to read could be seen in the game files, and some of them have been confirmed by the developers on twitter.
First of all, a new game mode called "stage" seems to arrive. This information has been confirmed by the devs and seems to be amazing!
You can already play the games in survival mode (a mode with enemies that spawn infinitely), but now a much anticipated "stage" mode is coming. In this mode, you will be able to play several levels classified under order of difficulty, and every 10 levels, you can find a boss! Incredible isn't it?
Then, all the menus have been completely redone with random transitions to accentuate this aspect of random chances of the game. The minutiae (which are currently very basic, even too much so) will undergo a considerable evolution worthy of the biggest budget games.
And finally, all the graphic system of color has been changed for an "ACES" format. Can't wait to see what it will be like, but it looks really amazing !
Don't forget to install the game on the google play store !!!