Being quite the PMD nerd, I'm definitely hyped for this. Regarding the whole GTI VS. TDS debate, I'd have to give the gold to TDS (Sorry, my gold obsessed coffin buddy!)
Though, one thing I really did like about GTI, was the experience system. In TDS, the Pokemon you recruited would inevitably fall behind once one of the dungeons only allowing you and your partner came up. GTI's sharing of experience to all recruited Pokemon fixed a problem that always really irked me.
If SPMD keeps this mechanic, (Why wouldn't they?) and gives us a story and postgame on-par with Sky, then I will be a very h