SA2 HD did feature some tweaks, 16:9, HUD changes, some audio overlap being fixed (iirc), adding back in some of the Big cameos, etc though granted most of those are very minor. It also had a short documentary video included. Was never crazy about the "take things out from the game and sell it back to you as DLC" route continuing from SA1 HD, though...
That all said, JSR definitely got the better end of the deal. It also made it to Vita, would've liked to see SA2 and NiGHTS make it there. So sad that the "Heritage" line stopped there, hard to believe it's been about 3 1/2 years since then.
EDIT: New SEGA Central.
https://youtu.be/AMqTghgwtyANotable news: It's up to ATLUS with regards to European distribution, not SEGA. No plans for 7th Dragon in Europe, but are looking into it. "Rest assured we are working on other PC port projects right now."
And as the title suggests, a little about Motorsport Manager is shown and talked about.