I'd feel better about getting nothing rather than having HD on PSN be for the anniversary.
That is very selfish thing to say! You are hating against HD,  so why bother posting on this HD thread?    HD actually fits as anniversary tribute really nicely.  
HD on PSN is better than nothing, fans wouldn't want nothing, and millions who don't have 360 will greatly enjoy it (veterans will too with the fresh community), 
Things like 1999 war wouldn't make it on time for anniversary release since it seems Konami may still not decide when to give IGA the green light on a project or they need more time studying the 3DS if they choose that for the platform.
HD is very fitting for anniversary since it includes many many favorite characters, gameplay styles and locations from many generations of Castlevania, and also combining the classic formulas with the newer Castlevania formulas into something super fun even after getting 100% of the stuff, while still preserving the 2-D gameplay that fits Castlevania best!   Even if they don't add new DLC, it's still technically very new to the majority of the PS3 masses and still more fresh, flexible and fun than playing through something like SOTN all over again.     

as for XBLA getting something new, well who knows, but remember a lot of console owners have been out of the loop when 2-D Castlevania series became exclusive on GBA/DS for years, so they already got their turn for Castlevania goodness, now it's PS3's turn.   

anyways, here are some Castlevania HD collector cards for veterans and newcomers!   
 http://i1117.photobucket.com/albums/k600/affinity7799/HDCARDSpage1.jpg
http://i1117.photobucket.com/albums/k600/affinity7799/HDCARDSpage1.jpgdidn't make these, but these are extremely awesome anniversary fanart!
http://img.photobucket.com/albums/v301/MudkipTreeko/21257895_p1.jpghttp://img.photobucket.com/albums/v301/MudkipTreeko/21257895_p2.jpghttp://img.photobucket.com/albums/v301/MudkipTreeko/21257895_p3.jpghttp://img.photobucket.com/albums/v301/MudkipTreeko/21257895_p4.jpg