I think it's the most realistic outcome at the moment due to rust belt trends and other trends in general. I also think that AZ, GA, NC, and TX will have shifts to the left with TX probably being within 1 or 2 points. This would probably make more sense if I included margins but I don't know much about margins on this website.
I think there’s a good chance TX stays at about a Cornyn 2020 senate margin across the board with more suited Republican nominees.
That is highly unlikely. Texas has been shifting to the left fast for over a decade and shows no signs of slowing down in major metro areas like Houston and Dallas-Forth Worth.