Bandai Namco Studios’ long overdue crossover fighting game, Tekken X Street Fighter, is officially dead. Its cancellation was confirmed during a recent livestream hosted by Tekken series producer Katsuhiro Harada, who revealed that the game was only 30 percent complete despite being announced over a decade ago on July 24, 2010. Intended to be a Tekkenized version of Street Fighter, Tekken X Street Fighter would have allowed Street Fighter fans to experience their favorite characters for the first time on the Tekken engine, but alas, the extent of that will probably only go so far as Akuma’s appearance in Tekken 7.
Tekken x Street Fighter project was announced alongside Street Fighter x Tekken. The concept at that time was that the Capcom side will create a Street Fighter x Tekken video game while Bandai Namco will work on a TxSF video game. The closest thing to this project was the inclusion of Akuma in Tekken 7, but nothing came out of this project.
Sources: Katsuhiro Harada, Twisted Voxel