As high as my hopes are, my cynicism is holding me back. I really really hope it isnt some lame solution, but I have a feeling its going to be a let-down. I'd bet it's going to go the same way ME2 did, that is awesome intro, awesome gameplay, and awesome story...up until the last mission, which will negate it all (oh yay, I fought an unfinished terminator knock-off, and didnt even kill Harbinger, just his silly one-liner puppet). I swear, if I have to beat more (even one more) Terminator ripoffs, I'm going to rage and ignore the story on every playthrough thereafter. I hope I'm totally wrong, I really do, I just dont see how defeating the Reapers can be done in a way that doesnt feel totally out of place and forced into the plot.
Dark Energy seems to be a good bet right now, but to be totally honest, I'd be a little let down that something thats only mentioned a couple times (and not even in an important way) turns out to be the end-all-be-all solution to the Reapers.
Before I throw in my speculations on how it's done, I'd want to know how long after ME2 ME3 takes place. If it's only a couple years or less, I dont see how Dark Energy could be the solution. No one we talk to in 2 even knows exactly what it is, how it works, let alone how to harness it's power to kill an entire massive fleet of Reapers with who knows what tricks up their sleeves, and I couldnt see a couple years in-game changing that. If its like a decade after me2, that might make sense. After all, weren't the Reapers pretty far from the Milky Way in the final cutscene? (I could be wrong, but thats how I saw it) So traveling through space without the Mass Relays to help would take a while, in which case alot could change.
I dont know, though. No one does, but it better not be silly and far fetched. Atleast no more so than ME2 was at the end.
I'd like to see a massive space battle, but I doubt that's all it would take... I mean, Shepard wouldnt really have any significance if that were the case, aside from commanding fleets, and that would just be boring sitting on the Normandy giving out orders, plus it would make most of ME2 a waste of time.
Either way, I just hope the gameplay is solid. ME2's combat was the major draw for me to play it over and over after I already knew the story.