I don't work at SEGA though and I have an incomplete picture of what's happening behind the scenes, I did know some stuff. I knew Valkyria Chronicles was coming a few months back. I know more but people told me in confidence and I'll be keeping my word on such things. I will say this:
If you want the other games, you should absolutely keep pushing the petition and if you have interest in Valkyria Chronicles you should buy it.
I think the main folks to thank (if you want to single folks out) are Grief (original twitter push), nillansan (who provided near constant moral support for what I was doing in the first couple of weeks despite a small amount of naysayers, he also made the thunderclap), Sajjaja (who was useless

), Dario (who made the original campaign video), Draikin (who made a video for Valkyria Chronicles to be included in the campaign) and Krusenstern (not sure if he's still on gaf but he helped with press pushes quite a bit)