16U is now (as of 1-1-10) 43'
It is too early to speculate about 2011 rule changes. The "inner circle" AKA Rules Committee Members may have already bantered around moving the lower age groups to 43' but they also are busy at this time with Nationals. 2011 rules will be discussed and tweaked later on.
I can only speculate that since NFHS made the 43' move for JV as well as Varsity, there would be a good incintive to move at least 14U to 43' but who knows? I kinda doubt they will in 2011, but might later.
Texas UIL however can change to any dimension they wish, but when playing ASA CHAMPIONSHIP (State, Qualifiers etc.) must use the ASA dimensions.
This has been raised the past couple of years and never got out of committee. Don't see it going much farther this year.
BTW, the "rules committee" doesn't have the authority to make such a change and really will not exist until the committee assignments are made for the Nat Convention in November.