So a youtuber has been messing with shaders and texture-packs in a version of Dolphin, and I think he has made some pretty nice presets for these two games (although a little less DoF would be appreciated.) Make sure you watch in HD. 

Twilight Princess

Xenoblade Chronicles 

Twilight Princess HD would be very nice.

These games need remakes, not remasters.

The colors in the TP mod are terrible. Way too saturated. Very ugly. The DoF is atrocious, too. The XBC one is pretty okay, though.

I would like to see Twilight Princess HD for the next home console

Nah, save the remakes for older games with bad mechanics, hideous assets, and bad visuals. I think 6th generation games have aged fine, and Wii games even finer. I mean Xenoblade in Dolphin with texture-packs doesn't look that much worst than many PS360 games, and the mechanics have not aged at all really. Twilight Princess could use some tweaking in terms of overworld design, but I think it is still very playeable. 

TP is very ugly. They remade OoT and MM, so they might as well remake this as well. Depending on the next-gen Zelda game, they could use the same artstyle, models and assets.

I'd buy either of these games remastered in HD in a second.
The game that needs it even more though is Mario Sunshine.

yeah but they wouldnt have Trophies/achievements like all the other remasters

They'd have actual gameplay changes instead.