They announced five Mario-related games here. The drought was worth it in my opinion. Here are my thoughts on each of the games:
Super Mario RPG - I played the original and never beat it, unfortunately (I got stuck at the final boss). This might be my chance to finally beat it. The graphics look great, they're modern looking while also being stylized and faithful to the original game, and I love the new arrangements of the music too. Looks like they really spruced up the cutscenes, looking forward to seeing them in full. Given that this was my first Mario RPG game, I'm really tempted to get this.
Luigi's Mansion: Dark Moon remake - Im pretty tempted to get this as well. I've played the first game on 3DS and I've been meaning to play the second and third games for quite some time, so now might be my time to do so.
The Peach game - Looks intriguing, I'm not sure what genre it is though. Looks to me like a 2D platformer with a 3D perspective kind of like Yoshi's Crafted World. Either way, I'm looking forward to see Peach starring in another game.
WarioWare: Move It! - I wasn't expecting a second WarioWare game for the Switch, especially since I didn't think Get It Together was particularly successful. I've never played a WarioWare game (I've only tried demos), so once again I'm tempted to pick this up.
Mario Kart 8 DLC - The bathroom track looks cool, kind of like Ribbon Road but in a bathroom now. The characters are interesting - I expected Petey Piranha and Kamek to come in, but Wiggler is a left-field inclusion. I was also surprised they showed three characters, when only five remain total. Really makes me wonder if we're going to get more characters beyond the supposed five.
Super Mario Bros. Wonder - I'm pretty happy that we're finally getting a 2D Mario game that's not an NSMB game, and visually it looks distinct as well. Seems like the whole hook of the game is that it's weird and wondrous, fitting for a game that's finally a departure from the usual fare.
Overall, I was very satisfied with this Direct. I was hoping for a Mario game of some sort, but I wasn't expecting five of them! I'm honestly tempted to get all five of these, I haven't been this hyped for Mario stuff on a good few years. I find it interesting how they revealed games for Mario, Luigi, Peach and Wario, a pretty wide spread of Mario characters.