I actually thought you meant something completely different 
Pretty nice, but yeap, anaerobic thylakoids are, in my opinion, kind of too much specific. But sure, we could use other photoautotrophs strategies, for example Halbacterium (or Haloarchea, specifically the Bacteriorhodopsin) which convert light energy into ATP directly, without firstly converting it into glucose, this of course has some pros and cons.
Ok, the only issue here is that ‘Metabolosomes’ is kind of an oddly specific amount of proteins that perform aerobic respiration, these would be completely different if other kind of respiration was performed. I mean it is simply a nomenclature problem. Of course the idea is thoroughly scientific. I’d say that nitrate reduction is the most common and the easiest to implement as ammonia is already into the game.
Sorry not to understand you earlier on haha , I hope the feedback was useful 