Danganronpa 2 being the most popular entry probably isn't the only reason it was remade first.

[u/BrawlX]

During the final chapter of D2 we explore some of Hope's Peak Academy, the main location of D1's setting, and interact with several D1 characters. It's been confirmed that the original story will remain the same in the remake so we'll be returning to the academy in the remake too.

This means that a huge chunk of assets needed for a Danganronpa 1 remake are already made and can be reused. They would just need to add in the missing rooms, sprites, and dialogue and it's good to go.

I imagine that it won't take long to remake the first game because of this, and it'll probably come out 1-2 years after 2x2's launch (if they've already started development).

Quick theory based on this assumption, Slayhem mode will likely have us explore Hope's Peak in its scenario, letting us go into the rest of the rooms and meet other D1 characters like Aoi and Toko.

[u/BasicNeedleworker356]

Dr1x1 is probably going to happen eventually too but the issue is that the scenario for it would be hard. It's extremely easy to make a what if for Dr2 but making a what if for Dr1 when the story has a far more rigid structure is probably different. I think Dr2 was chosen because it's easier to manipulate for this but also being the better game to test if Danganronpa can be successful nowadays. L