yes! they changed it to CG dragon, and gotta transfer the magic circuit like in the anime, but when they need to transfer mana again they need to be close together so shirou and saber slept closely together before the last day, instead of doing the ecchi stuff. Might sound bad but the CG dragon scene is very very well done in the game, i was a little disappointed when i saw it but then i see the execution it's pretty solid.

for ubw~ it's also magic circuit transfer from rin to shirou, and apparently my friend said you get to see some fish instead of dragon. haven't seen this myself but it should be alright.

as for hf~ for sakura instead of the need to do ecchi stuff, my friend said it seems like she needs to bite shirou's finger to suck blood O_o. Ah well it's weird but i already know it will be hard to suddenly change stuff like this. I guess even nasu kinoko kinda ran out of idea >< I haven't seen this myself, so duno about the execution.

Anyway I am still playing fate route slowly, but the ubw and hf route info i heard it from a friend who briefed thru the game.

deals with saber ^^. Extra ending is called "The Last Episode"