-Tekken Ball & Tekken Bowling are huge casual favorites that should both return with online play. These simple game within a game give casual players who might not be good at Tekken & are frustrated losing online a more simple "fun" competitive outlet. No other fighting game allows for online mini-games & I guaratee you this can be a HUGE selling point for Tekken 7 on consoles.
I don't think Tekken Ball and Tekken Bowling modes have much bearing for casual fans. It would have then made a difference for TTT2 WiiU vers.
If you want casual audiences to like Tekken... make Tekken look freiking awesome again.
- Update the animations to look next gen. Make impacts hurt that will really wow audiences like it did with Tekken 3. Or how Tekken 5 did with the new throw break animations. Have unique hit animations for heavy or light characters just like Virtua Fighter 5: FS. Make natural transition animations between stuns. Seeing someone attempt a backroll and then getting hit only to teleport back to a KND positions will always break immersion.
- Make Juggle animations look more natural (I know juggling isn't natural, but at least have proper rigid body physics and not ugly stuff like the current BT Screw Attack).
- Make Tekken resonate with the more mature audiences. The vast amount of casuals are men and women who are now in their late 20's to 30's. An art style that resonates with those audiences similar to what MK did will work.
- On that art style comment, GIVE THE TEKKEN CHARACTERS SOME RESPECT. There's no bigger turn off than having such a well designed fighting game character like Bryan all of a sudden getting owned up by Kauya in a dominatrix mad max outfit with a giant salmon on his back, pink pompadour hair, while having an ice cream cone in his hand.
- A big thing is the soundtrack. This is hugely dependent on the current inspiration levels the composer will have a the time so it's really difficult to give a tangible explanation on where to improve... But games like Tekken 2, Tekken 3, Tekken 5 where casuals were on board with the series had tunes that put even the entire industry to its knees.
It's all about these fine attention to details and iconic respect which made Tekken the go-to fighting game for all audiences from yesteryear.
Not saying that adding extra modes won't help, but the core issue of the current presentation of Tekken 7 needs to be addressed if you want access to that casuals audience. Remember, it's the details which make casuals make threads
like these.
EDIT: Just want to add, stuff like the end of round slow-mo is the sort of additions that improve the presentation of the fighting. It's a clear example where the audience collectively says "wow" at what's happening on screen. We need more things like that.