Hi John,
Only the 1.2v -Q1 version is available now, the 1.8v version in 2013-Q3, no other versions are planned. The way the VOUT is set is with an internal voltage divider to the FB pin, similar to what we would do with the adjustable version. What the customer can do is use the 1.2v version, add a resistor externally between FB and GND to "trim" the voltage to 1.25v.
Otherwise, one of the other devices will have to be used for the extended temp range.
-Leonard