I'm hoping that since LoS did Konami a solid one in sales that they'll lift the overbearing parental shtick this time and let MS do what they want with the sequel. I can't help but think that a little too much input from Konami execs fearing a backlash similar to what previous 3DVanias had brought on played the biggest role in so few familiar CV elements making it into the game. We already know they steered the music composition away from traditional CV fare, it only follows that similar "guidance" was enforced in other areas of the game as well.
I see a lot of potential in what they did with LoS, but if they carry on with LoS2 without addressing some of the concerns of the long time fans then I won't be so forgiving in my judgement of it. I give them the benefit of the doubt for now as it was their first attempt at making a game in this legendary series...and making that initial stab as a reboot with alot of pressure from the publisher is no easy undertaking. But I'll need to see some definite evolution in their game formula for the next entry. There are some things they need to do more of (creepy gothic environs, traditional CV baddies), and some things they need to do less of (contrived puzzle minigames, QTE's, hand-holding platformer sections). Also, I enjoyed the musical score for LoS, but it wouldn't kill them to produce some epic arrangements of long time favorite CV tunes for the sequel.
Personally, I think they should focus less on the long winded narrative for LoS2. Give us a Belmont hero wielding a very cool VK whip, and send him into Drac's land of darkness to slay the vampire lord. Keep the template simple and classical...and apply the better parts of LoS to that formula (great combat, great visuals, and respectable difficulty). It wouldn't take a full dry-dock of the first game to produce a sequel that is fully worthy of the Castlevania title (to new and veteran fans alike), but they DO need to address some of our concerns and disappointments if they want us to all stay on board with this new series.