You fellow Texas football for very long and you'll realize it's a real sewing circle.
Think of the JD Spielman speculation threads. . . now times it by 100 and for every single scenario. It's what made the former Longhorns message board legendary.
Now, I'm not saying Boyd isn't going anywhere, he certainly could transfer. I really have no idea.
But keep this in mind about Boyd. He didn't grow up with Ewers. He transferred into that school his senior year to play football. He then was only there from August/July until January (he was an early commit). The couple times the rumor has come up it almost implies like "Ewers to play football with his childhood pal".
If Ewers goes to UT, A&M or Oklahoma, does Boyd really make that change? Those depth charts look a lot more cluttered than ours. I'm sure they would give Boyd an offer with Ewers, but it's not an easy fit for Boyd to see early playing time.
Now Texas Tech . . . this is the one that's interesting. Texas Tech seems to be going all in on the Texas HS football route (imagine if NDSU hired Mike Grant and a bunch of the local HS coaches). The rumor is that Ewers' and Boyd's HS coach might join the staff at Texas Tech. If that happens, it could certainly happen.