I can confirm that the bit that says:
「『ホワイトエンジン』の開発は停滞していない」
means: development of the white engine is not stagnating
The paragraph after it might say something to the contrary, but I'd have to check every second word from a dictionary, and don't have time for that right now. One of our fluent/native speakers should be able to help us in no time. =P