Max pointed this out in his KOF XV review, but Japanese fighting games devs need to put way more content in to their games to make them last longer. Gives us more than online vs., training, tutortial, arcade mode, or seasons/roster updates. A lot of these games acts as if they were ported straight from the arcade with little to no features. What's worse, is that some Japanese developers like Capcom and Namco already solved this problem back in the PS1 and PS2 era. Midway/Nether Realm became the golden standard around MK9. Yet tried all the way back with MK: Deception and its bonus content.
Capcom at least tried fixing their mess by adding plenty of new content and daily challenge updates by SFV Arcade & Champion Edition. Namco gave Tekken 7 bowling mode and nothing else. Why remove features that have been standard in Tekken 2 or 3? Why did you guys remove Tekken Force?! Where is Tekken Beach Ball? You had all of this rich content in either the previous games or in Tag Tournament! Make you games last longer! Not everyone is going to be online constantly.
Even Nintendo gets this right, and manages to trump nearly everyone with Smash Bros, starting with Melee. It only kept growing over the years, and now Ultimate has all of these content rich features from either the get go, or as an update.
SNK and Arc System suffer from this the most in lack of content. Step up your game, people! If you're charging top dollar, in addition to season passes, put some goddamn content in your game! The casuals you want so much, will drop you at some point! Not all of them will come back.