There's no doubt that we will eventually get the newer summons, because the newer stuff are needed to keep the game fresh. Game would eventually be stale if all you can do is Fusion Summon. Especially when newer archetypes are designed with the newer summons in mind. We already have some archetypes being mediocre without their synchro/xyz bosses, we don't need a ton of that.
It's not about being positive. I'd say It's all about perceiving the reality in a fact-based way. If you play a game, you should know that game is going to evolve in order to have continuity; and if you are a real player and like that game, you should evolve alongside it.
The thing is i don't like any series after dm,gx,5ds those new ones looks trash compared to yugi Jaden and yusei and bonds beyond time was between those..