But you are still making sweeping generalizations and taking choice out of players hands. That would literally ****** off the fan base even more.
Here's an example: "My control Shepard would have never destroyed himself/herself!" "I ****** hate glowing green thing! This makes no sense!" "You said the geth were all destroyed!!!!!" Face it fans are assholes. We will pick that **** apart.
Syn would be hard because you would have to tailor the entire game to it...and if there was ANY conflict/squad mate that involved a non-organic being (because in the other two futures they would have them, only syn does all non-organics get organic parts) it would be a mess. You might as well make two separate games with all the extra content you would need. That or you would brush over it which would make that ending pointless as **** anyways. Syn is probably the biggest game breaker as it is such a HUGE change that I can't really believe they would go that route. Control and destroy if they were the only options it would be easier and I would agree, but I don't think they are capable of that kind of work. Or that they would see it as beneficial when there is such an easy way out...
Not saying it can't happen, but I just highly doubt it. You aren't talking about one future, you are talking about three separate stories. That's A LOT of work. Given ME3 I really hope they don't waste their time with that. The ending of ME3 sucked I would prefer to just forget it. I think that's what they want to do too. Just move on to greener pastures. They are damned if they do and damned if they don't either way, but I think Rev is right. That this would be the path of least resistance and complaining. If they tried to address the endings it would just start another complain war especially if they retconned anything or made decisions with Shepard that someone wouldn't have made. Or they wouldn't address the endings fully enough to make everyone happy. Not doing so at all isn't really an option because they'll complain there too the only exception is if Rev is right.
I think perhaps people in the ME community are so entrenched on the idea of disliking the ME ending because that's what some other highly vocal individuals feel that they make illogical statements and are unable to change their mind, even if their reasoning doesn't make sense. Its almost fanatical. How do you know that Shepard wouldn't choose to end the reapers in control eventually under the right circumstances? If it was done right, anything can happen. Theres also no guarantee the geth are all destroyed either etc.
Lets be honest, nobody knows what exactly the synthesis ending was supposed to mean. All the catalyst said was that organics and synthetics would be integrated, that it would alter the matrix of organic life. Does this mean people will have biotic implants like shepard? The reaper of Diis desmonstrated that the reapers are composed of both organic and synthetic components already. But perhaps they could not try it with the races of the MW because they were not ready?
Maybe MW species would become like the cylons of the new battlestar galactica. They were synthetically composed right down to their DNA but they were so close to being biological that the humans required a 'cylon detector' to tell them apart. The only real difference was that cylons could upload their consciousness into new bodies and access other cylon memories. There wasn't a massive difference. It blurred the line between what was alive and what was synthetic. So perhaps something like that could work? There are many possibilities.
In case the fan base didn't notice, the ME team have benn taking choice out of the players hands since day 1. Did your choices in ME1 drastically alter the outcome of ME2. Or in ME2, did saving the collector base for cereberus or destroying it, alter cereberus getting their hands on reaper tech in ME3? No it didn't. So why should it be different between ME3 and ME4? Why, only now after 6 years would the fan base decry a lack in choice when that has been a basic mechanic of ME since the beginning. Its just the newest novelty that players seem to have choice in games like ME, KOTOR, Telltale games the walking dead, Life is strange, the wolf among us etc. Its just an illusion.