Will have to wait till Thursday to confirm the full lineup, but based on how they're announcing their "New Thursdays!" block, it smells like this to me.
Teen Titans Go!, new episode 6 PM, repeat 6: 15 PM.
Steven Universe, new 6:30 PM, repeat 6:45 PM.
Clarence, new 7 PM, repeat 7:15 PM.
Uncle Grandpa, new 7:30 PM, repeat 7:45 PM.
What baffles me to this point is... Why "New Thursdays!"? when it was just as effective on Mondays, or if you reeeeheeelly have to change it, not Fridays instead?
And all they're missing is another hit fifteen-minute show to really and truly make maximum efficiency of their weeknight lineup... Teen Titans Go!, Steven Universe, Clarence, Uncle Grandpa, Adventure Time, Regular Show, and Awesome World of Gumball, that's almost the entire two hours with one episode each right there.