I watched him very closely last night and although he didn't have the best of games, from a tactical viewpoint I think he could be as influential as Silva for us.
Silva, Nasri, Navas and even Yaya are all very good players but they're all of a similar mindset in terms of their first thought is to retain possession. De Bruyne is different in respect that he is constantly looking for that early killer pass, it doesn't always work and we will undoubtedly lose possession more frequently but you can completely understand why he has so many assists.
With Aguero and hopefully Sterling making constant runs in behind opposition defences I think Silva and De Bruyne could be immense as our playmakers. We would be a much more direct team but I personally think that's a positive because we've been too slow and predictable this season. I think Bony would thrive in that team too if any of that attacking quartet was injured/rested etc...
it also gives us pace and youthful energy to press and defend from the front which is just as important if not more so in the Champions League games.