Can't really tell yet, but FWIW I actually had to generate new map for the first time ever after the 1.2b. And I had to do it twice in a row
First time I was alone in a corner with only 2 solar systems within the reach of my Flagship and neither of them had any habitable planets. In the second I was completely surrounded by AIs and almost all of the solar systems were behind that AI zone. In the third map (one I'm playing currently) I have good (well, excellent) position as all AIs are side by side along one edge of the galaxy, and I'm pretty close to the center by myself. Settings are Medium Galaxy with everything set to Common and 4 AIs.
Otherwise the excellent game play just keeps getting more excellent (with the actual 1.2 we may run out of superlatives)