A trilogy remaster could really benefit the Mass Effect IP.

Could be, but:

A. What lessons will EA take from it if it does well?
B. Since remasters usually don't seem to do that well, and for many people are probably uneeded, will they actually...you know...sell?
C. And that doesen't even touch on the ending for ME 3 is the ending to ME 3 and will not be changed. And since the ending to ME 3 is what damaged the reputation of the trilogy in the first place...

Mass Effect is one part action, one part story. Frostbite delivers so much more than the original trilogy. OH MY GOODNESS. Also, it would need to be Mass Effect 1.1 or something similar to fix all the story line issues and completely avoid the last weird 15 minutes with Starchild and replace it with an ending that doesn't use storyboards like Fallout does. I would love to see it re-mastered in Frostbite. All the old stuff (tactical pausing for single player, paragon-renegade, etc.) while seeing the Frostbite canvas. All the assets (all of them!) are then in place and allows for more flexibility in adding new content later. If I was EA's CEO, that's how I would do it. It would be Mass Effect 1.1 with each title including all the OLD DLC pertinent to each one for $75. If you spend $200 up front... all three titles with 50% coupon for NEW DLC. If I were EA's CEO, Montreal would have slave collars attached pumping out Mass Effect Andromeda DLC right now. That's me. I'm just kidding about the slave collars from Fallout. No... I'd just pay better and keep everyone at their desks because their eager to express their art instead of doing it because it's a job. I'm not idealistic either. Only a sociopath would disagree with me.

A remaster on Frostbite wouldn't be a remaster. It'd be a Remake.

A remake would be awesome but they'll never do it.

The ME trilogy held up well over the years as a whole, but it's well reached into that point where it's really showing its age. ME1's gameplay mechanics are downright primitive when stacked against any proper shooter made today. With aging gameplay, a disjointed overarching narrative and an ending that remains troublesome even after its huge patchwork, I don't think this would benefit the IP as much as some might believe.

Yeah, I won't get rid of my PS3 until it melts into a shiny black puddle, and since my entire ME collection save Andromeda is loaded on it (along with the Collector's Edition of ME3), the whole idea of paying for the trilogy again is madness. 

I'd love more ME and wish something would come out soon, but now that they're huffing markers and making Anthem that's a long wait for a train don't come. 

EA doesn't want to pay the Steam Tax. Origin let's them keep 100% of the monies. I think the money they'd spend on a remaster would be better invested in new IPs. 

I'm with you! EA won't give up on Origin for now, though.    ME DLC prices haven't come down either. I bet they'd throw those in a $eparate remastered DLC pack. Can't spell bastards without EA...

Would you believe me if I told you that's a "typo"? I meant to write basterds.   

I like to have a remaster to play on the ps4. I would add 3 more platinum trophies to my total.

Remake, remaster, reboot.... this is all we're good for lately (games, movies etc.)... so, no thank you.

What I want are new original games and ideas.

Technically speaking, a reboot has no continuity to the original game and is more of a reimagining of the story, characters, etc.
I'd honestly be curious about a Mass Effect reboot that is a much harder sci-fi.