And before you guys keep going on a running rampage, I’ll explain what this statement implies.
Simply put, DLC requires far less development staff than the amount needed for the base game. The only stuff Sakurai’s team would be working on right now are 6 fighters (1 who is nearly complete), 5 Stages, a couple of Mii Costumes, and a couple of soundtracks. Compare that to the base game where you needed several more artists, designers, programmers, composers, etc. that needed to work on 100+ Stages, 76 Total Fighters, 800+ Music, CGI cutscenes, Graphics, Art Pieces, and a lot more.
It’s understandable why the team would shrink as a result because there would be no point in keeping so many people in charge of much less content.