I would argue that the following species probably ought to come off the state T&E list
Tantilla cucullata (huge range, no threat, no demand)
Trimorphodon vilkinsoni (huge range, no threat, limited demand)
Drymarchon corais (huge range, mostly protected habitat = huge ranches, limited demand)
Syrrophus guttilatus (range much larger than previously though, no threat, no demand)
I would argue (but probably loose) that Coleonyx reticulatus ought not be protected - over 95% of its known range in TX is protected by state or federal land, tiny fraction is road-accessible and although it is a relatively "high demand" species, just don't put it on the "white list" so it can't be commercialized.
A few other species on the "list" that seem to be doing well
Coniophanes imperialis - supposedly common in flower beds and vacant lots in cities of LRGV
Ambystoma talpoideum - lots of new locales for this species have been discovered in past few years as we gain a better understanding of its natural history in Texas
Some stuff that ought to go on the list
Ambystoma maculatum - very difficult to find outside of a few well known localities
Ambystoma t. tigrinum (Eastern Tiger) - extremely difficult to find outside of a few well known localities
Thamnophis sirtalis, all races found in Texas - extremely rare, habitat for annectans mostly gone
Holbrookia lacerata (both races) absent from most historic locales
Holbrookia maculata perspicua (Eastern Lesser Earless) absent from most historic locales - hasn't been seen in Texas since the '70s
Those are off the top of my head . . . kind of a consensus list from my own observations and anecdotal information passed around amongst herpetologists. For example, the Holbrookia stuff is well documented (Axtell, museum records, etc)
Troy