Retro Daytona USA 2 is getting it's first console port as part of Like a Dragon: Gaiden (under the name "SEGA Racing Classic 2")

[Krvavi Abadas]

from what i can tell, the inital rumors about Daytona USA 2 seems like something that was floating around Japanese insider circles before Famitsu confirmed it.

as for the significance of Spikeout, it was designed by Toshihiro Nagoshi prior to him getting involved with LAD, with it's 3D Brawler mechanics being used as a clear inspiration for the series default combat style prior to 7. (another smaller bump in that road is Rent-A-Hero No. 1, as while it lacks Nagoshi's direct involvement, it uses Spikeout's combat engine and adds in the other elements you'd expect from a Like A Dragon game, such as the focus on exploring Japanese locales and engaging in bizzare sidequests.)
like Daytona USA 2, the game never received a console port. though there was at least an Xbox exclusive spin-off game.

 

[Krvavi Abadas]

IT'S IN INFINITE WEALTH! THEY'RE FINALLY PORTING IT AFTER ALL THESE YEARS!!!!!!!

(they're also including the frequently ported SEGA Bass Fishing as well.)

 

[Krvavi Abadas]

Sega of America: Are there any arcade games that haven’t yet made it into the Like a Dragon series Club Sega that you’d like to include in the future?

Sakamoto: In the future, I would like to try to include games on the NAOMI system, which is the successor to Model 3 and based off the Dreamcast system. I wonder if anyone else would like to see that as well…

buried in an otherwise basic (aside from the sad mention that CLUB SEGA locations no longer exist in real life) interview on the official Xbox blog.

the cross-platform nature of it's design meant that a lot of titles on it were inevitably ported to the Dreamcast. but there are a few oddball exclusives stuck on the platform like Monkey Ball (Super Monkey Ball is more of a full remake than a direct port) and Slashout.