Was not calling for your judgment; but consider a few details. Temple Institute and Boneh Israel didn't comment for the last six months, and I don't see that changed. Now I appreciate that one of your links has an Ariel interview that lays out much the same requirements as I did, but it's no news as to intent, just like I said; and it's personal and not for the Institute.

The Temple Institute also links a Youtube that is not theirs but comes from the Mikdash Educational Center. Them having a 3/27 conference is also guesswork. The Ariel interview at least lays out the halakhic criteria and the problems. Ariel notes that we have not yet built the pathway for the pure priest to travel to the altar purely, so that may put a serious damper on the sacrifice for awhile.

Of course the cows are inspected regularly, including even when in Texas. They have deliberately obscured the date when the final inspection will happen or has happened. It's probable they won't settle for a final inspection until near the moment of execution anyway, because inspections have an expiration date. As noted, the final inspection cannot take place until the third year, but we are presumably in the third year.

It doesn't matter whether Muslims are around. They are sacrificing in view of al-Aqsa Mosque and if a hundred Muslims stormed the altar with the mere intent of leaning on the calf once before it is slaughtered, the Jews would rule the calf impure on that account. They are taking no chances with this. The security question is deliberately unanswered publicly, just like the pure pathway question, the correct location question, the Texas origin question and so on.

The only way for them to do it is to announce all the halakhah being satisfied to the agreement of a vast number of rabbis all at the same time and to proceed to the sacrifice and complete it without incident. I don't see that happening soon without ground changes. Now I grant I don't watch Israel365 every day to see who gets interviewed, nor do I follow all the associated groups like HaMikdash; but my argument is pretty well the same for your data. Your keeping tabs on the real sources is very important and useful, and my encouragement is to ensure that the many many hangers-on don't get counted as real sources.