Out of that list...
-Daytona: Road Course is out of date for starters, Should be up to date & relevant to what I can watch on TV.
-Laguna Seca: Don't update it, just replace it with Sonoma Raceway (formerly Infineon). It's bigger and more fun, IMO
-Deep Forest: Classic GT track that'd be interesting to see a 'update' and/or expansion of.
-TR246: All I can see when driving here, is PS2 assets. I don't approve.
-SSR5/7: Lots of potential here if PD were to 'open' the connections between all SSR tracks (SSRX findings, etc)
-Nurb: For this track, I'd like the 'update' to be additional seasons, Fall/Winter/etc. GT's version is too clean, no overgrowth or over-abundance of graffiti.