In TMNT (2007) a shelf seen at the end of the movie contains references to the other Turtle film's such as Shredder's helmet, TGRI can of ooze, and the time scepter. :
Nickelodeon Ninja Turtles Shredder Figure Review | Infinite Hollywood
TMNT the Shredder 2007 Movie Custom Repainted 7 Action - Etsy
Peter Laird's TMNT blog: BLast from the Past #551: December 6, 2007: Re: TMNT sub-randing for season 7, December 7, 2007: Re: TMNT sub-randing for season 7, and December 8, 2007: Re: TMNT157 1st draft
Request - TMNT 2007 'What-If' Shredder by KrytenMarkGen-0 on DeviantArt
Oroku Saki (2007 video games) | TMNTPedia | Fandom
Amazon.com: TMNT - Teenage Mutant Ninja Turtles (2007) [DVD] : Patrick Stewart, Mako, Chris Evans, Sarah Michelle Gellar, Kevin Smith, Ziyi Zhang, Laurence Fishburne, Mitchell Whitfield, James Arnold Taylor, Mikey Kelley, Nolan