I very much doubt that. There's a reason why innovation in games often happen, entertainment is not an easy problem to solve, with no set quantity to achieve
I agree as well that technology wise it still isn't solved, but I think it is the creative side that will be the most unknown part of the project these days.
That is why we have so many bland but technically impressive games. Studios want safe bets, an FPS game is easy, making it interesting to play is still very hard.
Agreed, but a lot of industry work doesn't give you much leeway to be creative. You can say the same for a level designer who just has to implement pre-specified designs they had no hand in.
Decent amount of BF games flopped. Assassin's Creed had three "reboots" of the formula. Ubisoft recently realized they have to shake things up, since flops are more and more common.
it depends on what the poster meant by "games" - do they mean engine and graphics? Or do they mean game design/mechanics?
Game engines and graphics is "solved" if you stick to popular concepts (which are those that are easily available in commercial engines).
Game design/mechanics is an unsolved problem imho - unless you consider it solved when merely taking an existing game design (like an FPS) and add nothing new to it (aka, those yearly COD military shooters).
Consider a game like https://store.steampowered.com/app/1141580/Taiji/ (inspired by the witness). This game is quite unique, and cannot really be recycled in to another game (without it being just a clone).
That is why we have so many bland but technically impressive games. Studios want safe bets, an FPS game is easy, making it interesting to play is still very hard.