Further developments in what way ?, the emanage blue is a good bit of kit but I would not bother at BPU and stock injectors level, I would change the ECU with a fueling system change, then I would only really look at making an ECU change once, these costs add up with a map being required each time
I would stick with stock and talk to a mapper about what you want from the car going forward, match your requirements and spec with the right ECU, perhaps a stand alone would at some point be the right choice
Remember you are Auto as well so your gearbox will always be a limiting factor, BPU is about all it will take