I completed a very barebones version of the timeline stack. It was a pain to balance, and in the end I decided for simplicity there's no way to lose. 
I don't think it's particularly great as is, I'm not sure if throwing more traditional roguelike features would make this better or not. 
One of my main weaknesses is that I haven't got a very solid base to start from... I really should commit to an engine and then put more work into creating a non-7drl that I can fork off of instead of starting over nearly from scratch all the time. 
Anyways, was still a fun week as always!