I think some recent staff activity there pointed to NLG finishing a project in January, which would line up with LM2 HD's release this year. I know Grezzo did Luigi's Mansion on 3DS, but that was an EAD title back on GameCube, and it seems EPD at least partially outsource ports/remasters of past internal games (Grezzo handling various Zelda titles and Miitopia, NST working on things like Captain Toad and 3D World, Tantalus working on Zelda games, iQue and NERD working on 3D All-Stars etc). By way of comparison, there's precedent for Nintendo's subsidiaries to handle re-releases of their own games on Switch - Retro Studios with Metroid Prime and DKC Tropical Freeze; Monolith Soft with Xenoblade Chronicles, NST just last month with Mario vs DK. It wouldn't surprise me if this is a quick NLG project on Switch while their next new game targets the next console for 2025 or 2026.