Update: In addition to the report mentioned below, a second report from Eurogamer now lists Super Mario Galaxy as one of the confirmed remasters, "alongside a couple of other 3D Mario favourites". The report's author, Tom Phillips, has also taken to Twitter to suggest that HD versions of Super Mario Sunshine and Super Mario 64 are also on the way.
The author of the original report, Andy Robinson of VGC, has seconded those claims, while also stating that Super Mario 3D World and "other 3D Marios" will come to Switch.
Original Article: Nintendo is set to remaster "most of Super Mario's 35-year back catalogue" on Switch to celebrate the franchise's 35th anniversary this year, according to a new report.
The monumental news comes from trusted site VGC, which credits "multiple sources" for the information provided. Apparently, Nintendo is set to hold an event which will coincide with the anniversary, with all plans due to be revealed alongside new details of Nintendo’s partnership with Universal and more.
The specific games theoretically coming our way haven't been mentioned, but the report mentions that as well as the remasters noted above, "several other Mario titles" are also launching in 2020, including a new Paper Mario game.
We can't quite believe what we're writing, so we'll be staying glued to our screens for the foreseeable future and will, of course, update you should Nintendo announce these plans officially.