I don't think it was really a question between Pe-2 and Tu-2, more like a question between A-26 and Tu-2. Tu-2 is a great new MA-toy and Pe-2 would be an awesome addition for Special Events.
I'm not sold on the idea that HTC is going to add the A-26 anytime soon. With their track record of late they've been doing a very good job at plugging holes in the plane set and getting more historical planes in to the game. I'm not convinced the A26 will enter in before the Wellington, Ki-100, Beaufighter, Ki-45 'Nick", MiG-3, or a number of other planes. I bet we see a remodeled Ju88, A20/Boston, SBD, and who know what else before we see the A26.
Regarding the Pe-2, I'm not convinced that it have added much for the Soviets in the MA. The Pe-2 had no offensive guns to speak of, and carried 3000-3500 lbs of bombs depending on variant. In short, it would be similar to taking a Mossi or 110 to a target, but with no guns, and another 1000 lbs of ordnance. Speeds were similar to the Mossi and 110. Some sources say it was a level bomber, but most say it was used as a shallow dive bomber. Who knows where manouverability would end up, I'm guessing not as well as the Mossi or 110 but that is just speculation.
Eventually, I do hope to see the Pe-2. It was certainly a cornerstone in the Soviet air force in WWII and it deserves, without a doubt, to be in AH. The same can't be said for the A26, imo.