Toei had recently trademarked the title of next year the 45th Anniversary Super Sentai! The title of the show is going to be "Kikai Sentai Zenkaiger" (機界戦隊ゼンカイジャー). Now, some of you might think of the word "Machine" (機械) for "Kikai". But that's not it. This time the word "Kikai"(機界) means "Machine World".
So due to that, many might think of putting up Kamen Rider Kikai or Kikaider as a meme for this news.
Now going to the word "Zenkai". It would mean "Full Throttle" (全開) considering the word 'Kikai'. So I think this might be a Car or Vehicle themed Sentai. (Even though Kiramager's Mashins were also vehicles).
The registration was done on September 8th with September 23 as open to public. The registration numbers are from 2020-111525～2020-111546. Here's the link where you can see the Trademark registration from the Official Site. → https://www.j-platpat.inpit.go.jp/?uri=/c1800/TR/JP-2020-111525/74D4C132FF487F371E22E4CFD645BB66A0D9A038742229C7BB6028A29ECBAB17/40/ja