It's an epic waste of time with this upcoming spinoff with similar looking concept like the interface design being the same, 2D and 3D graphics of idols performing on stage during gameplay and I don't know the amount of originality the gameplay has. Some of the games in the list according to Wikipedia have DIFFERENT CONCEPTS, like Taito's Idol Chronicle where you manage only ONE idol group with whatever outfits and accessories you can randomly draw for, Tokyo 7th Sisters has different and better gameplay concept with version 2.0 onwards although it uses FMVs behind the HUD and of course, Bang Dream Girls Band Party which has rock bands instead of idol groups although the kind of fanbase along with partially original interface design are the reasons on why the game falls on this list.
I don't know what caught the game developers like Square Enix, Taito and even Konami the attention into making such a copy-paste game like that with similar layout and template. This is like taking Street Fighter IV template and then making your own fighting game but this is too outnumbering.
Many of the nerds may regret the fictional idol stuffs due to being outnumbered by the endless amount of such games in existence for mobile and it can be a huge waste of battery and storage space in playing those anyway. You may look like a spoilt idiot if you have played all of those idol-themed rhythm games as stated in the on-going list in Wikipedia but a few of them should be enough as you have other things to do.
You know what Konami should do instead? Make a god damn campaign for Bemani games that is a tribute to Tokimeki Memorial franchise just like they did with Hina-Bitter campaign. Why would they waste such a god damn time ripping off the other rhythm games in existence?
It's an unlucky time for us and especially that Konami is coming up with Bombergirl which is a controversial spinoff of the Bomberman franchise. This, on the other hand, is the spinoff of Tokimeki Memorial franchise and they made a comeback with it? Perhaps, THIS and Bombergirl are what Metal Gear fans can talk shit about and I hope nobody as a gamer cares about them. It's a negative change and not what I want to see.
I don't know what is so DIFFICULT to make a new game in the classic series like the Tokimeki Memorial one so to speak. Even without the main and famous director behind the series, they could have made a new one without him under a new team just like what the other team at Konami comes up with Super Bomberman R. Like Metal Gear Survive, this upcoming spinoff is unacceptable as if some fool thinks that a few idol-themed rhythm games is not an enough amount.
The only appealing so far is that one of the characters from this upcoming spinoff is a retro-gaming freak as if Gradius is one of her favorite games or some kind. Another thing is that the prologue CD has some songs from the classic Konami games.
At this rate, it may look like Konami can do whatever sinister shit they want besides doing the right thing. The game is said to be coming out in late this year or something and there's nearly no way anyone can cause a reform of the incompetent game company we know of. Play the game by the time it comes out if you want, but that will mean you're pissing off Metal Gear fans regularly.
