Oh man this makes me so excited, even if its not the first time we hear about it!
I personally think SE is closer to its PS1-era when developing for smaller consoles (DS/PSP), or with a mid-sized budget (NieR:A).
In terms of what i would like, the list is hella long:
-Ports of titles that wouldn't melt the consoles (yes to WoFF, Dissidia; no to XV, KHIII);
-DQXII to be developed simultaneously for both PS4(5?)/NS (this is a given imho);
-New IP from Silicon Studio, a Bravely Default spiritual successor with higher budget, similar systems and artstyle but with proper cutscenes etc.;
-New Mana game, with a proper campaign, story and combat, with local and online coop;
-TWEWY HD;
-TWEWY 2;
-New FINAL FANTASY CHRYSTAL CHRONICLES, a proper sequel to the original GC game, with character customization, enviromental puzzles, intricated level design, and most importantly local and online 4 player coop;
-New Final Fantasy Tactics or Tactics Advance inspired by Valkyria Chronicles;
-FFV-VI/Dragon Quest 1-6 Remakes with Octopath Traveler's assets;
-More projects like Octopath Traveler;
But really, the possibilities are endless.
Thinking about the possibilities of DS-era Japanese devs output but with modern tech and slightly higher budgets makes me wet.