........hmmmm............Rival Shools and Star Gladiator as well as Darkstalkers but do it differently than before.
With Darkstalkers and Star Gladiator they can put a strong emphasis on story while Rival Schools could be more.....unique since its about high school.....I think RPG elements work in its favor like you can create your own character (Soul Calibur style or Dragon's Dogma style) and give a set fighting style from the various roster of characters or customize it and its about your character's adventure in that school (forgot what school Batsu and co. attend though) as an (foreign) exchange student or a new kid in school similar to Persona 4's plot (minus the well....you know and be realistic and not so much detail on story/narrative since this is a fighting game). The plot is like before but more emphasis on this school rivalry and your character's life at that school. The characters can easily be reworked/rebooted to fit more modern contemporary stereotypes of modern day high school students/teachers and tropes from both the Japanese and Western perspective (you'll have Batsu who is the badass school student who doesn't pay much attention in school and gets into fights.....the most common stereotype about high school males used in Japanese media and Tiffany....somewhat of the ditzy, cheerleader pretty girl leaning more towards to hot blonde/cheerleader stereotype you see in western media and even a new jock/meat head character. Kyoko the hot teacher, who every prepubescent teen male wants to bang and a sports coach and like how we had characters who represented a club/activity from a school like Natsu was a volleyball player and the little girl was a tennis player....a kick boxing/karate dude or a track star who has speedy and has furious kicks.
This game would be soooo kooky and interesting people will want to try it and mixed with the RPG elements make it stand out from most fighting games with that and its style.
With DarkStalkers I say a drastic increase in tone is order. By that I mean not only since its transition to 3D be a pretty one but a gory and violent one. Yes Darkstalkers should be a rated M game. It would stand out more from SF and MvC since people practically say DS is a halloween version of SF. I mean DS was pretty twisted and f*cked up already and even had pools of blood and stuff. It can be like Samurai Shodown (which latest game was rated M). Plus stuff like blood being splashed by various specials from certain characters (Jedah and etc) would be hard to convert into 3D without toning it down...thus eliminating one unique trait about DS and lets not forget Lord Raptors regurgitated transformations and sticking out organs and stuff. It doesn't need to be Mortal Kombat gory and brutal...God no....not to my Hsien-Ko and BB Hood, but it can somewhat like Samurai Shodown fatalities but more.....monster/halloween like...heck maybe even cartoonish....take some cues from Bayonetta.
7:20-7:38 NOW THAT IS WHAT I'M TALKING ABOUT!!!
8:35-8:40 I can see Pyro doing something like that.
9:00-9:10.....just....beautiful..*sniff*
4:38-4:45 Now that was pretty......f*cked up.
However, Darkstalkers fatalities should be like a middle finger to the loser in a sense it takes some skill to pull off and not so simple of drain your opponent's health to zero and enter a quick series of inputs while they stand their all confused. Plus they should be more humiliating and tailored to the character's style like Lord Raptor is something stupid and funny, Morrigan can be seductive (or similar to Bayonett'as Torture and Execution attacks) so if I watched my characters gets f*cked up and slaughtered I can at least get a stiffy from it or be shamed. Dmitri's can be like he bites/or grabs his opponent and sucks him dry (Midnight Bliss sort of) and toss their lifeless, drained, barely recognizable body away. Pyro's can be like Enja's from the video and Frankenstein can discharge 10 megawatts of voltage energy and shock them to a burning crisp or black corpse or for humor's sake a pile of cartoonish ash with eyes.