Will/should EA dust off that remastered trilogy idea?

Given the original trilogy was made in Unreal Engine 3 and range between 5-10 years old, it would be a massive undertaking upgrading the games in Unreal Engine 4 (unlikely given EA's ownership of Frostbite) to meet modern standards, and 'porting' them over to Frostbite would more or less involve recreating them from scratch - people don't seem to get that you can't just straight-up transfer the entire game from UE3 to Frostbite and expect it to work. You'd literally be making the game from the ground up, only with a very strict plan of where everything should go.

The only way it would be feasible is if the games simply recieved high-res textures and maybe some general improvements to lighting; anything more would require far too much work, because a lot of it would need to be done by hand. For example, many of the assets in ME1 likely exist (if they've been kept) in far higher quality than they were featured in the original game (being created in software such as maya or mudbox or Zbrush), but each and every one of them would need to be re-sourced from those assets, otherwise we'd be looking at the exact same models in our shiny modern resolutions, and I just can't see that selling. And that's before we get onto environments or special effects or swapping out textures for material based rendering.

Just think of all those corridors that would potentially need to actually reflect their environment rather than relying on crude texture maps, or the areas with baked-in shadows that would now need real-time lighting so your characters aren't casting shadows on shadows. And all the hair that would need remodelling, and would the skin recieve subsurface scattering, and would the game use more advanced depth-of-field effects, and would they seek parity between all the OT games, meaning ME1 & 2 now need even more work, etc. etc.

And let's not forget, as many did when comparing MEA to the OT - we're talking about three whole games here.

There's just so so many things that would have to be effectively remade from scratch, and while it would certainly sell, I very much doubt it would even come close to covering it's production costs given the amount of work required to make it anything more than the original games looking no better than they did on PC with a couple of texture mods.

tl;dr - the cost effective option likely wouldn't sell well, and upgrading/remaking the games would likely require more effort than just making a brand new game