Yeah, basically my thoughts, too. Regarding the combat, I was even thinking something bigger, like The Last Remnant's squad-based system (which, incidentally, was also made by BD5 staff). Really curious about FFXVI, too! I'm expecting it to have a more medieval setting like FFXIV, hopefully with some Steampunk elements so it won't be too plain. Also hoping for more grounded and diverse character designs (more adult characters, and men with beards like Bash and Punished Noctis, please!).
And indeed: old Noctis is, imo, the best designed main character of the entire series, BY FAR. And he's still a model with a weird hairstyle, so it's not like they went for a grizzled middle-age bearded man to cater to Western tastes. All you had to do was take Noctis' design and give him non-embarrasing clothes and a hairstyle that's realistic enough and not too ridiculous, as the face is practically the same, beyond the beard. Such a shame that this design is wasted like that, if you ask me; Naora did a great job there (and with older Gladio and Ignis, if that was him too).
Hell, Nomura (beyond the, imo, quite flawed default versions of the bros) and Ferrari did a great job overall, barring some silly things in some characters (Cidney's clothes, Ardyn's stupid wing...), so I'd want more of that: the older bros, Cor, Aranea, Luna, both Regis, both Clarus... look pretty good. I'm sure they can make their main characters more like them, while still being young and appealing for both Japanese and Western audiences.