This one won't work since TA can be used after Suiton, but Suiton doesn't apply Hide. Suiton let's you use TA without Hide.
I do like this train of thought because this "conditional" change of abilities is already utilized in PvE, but only by a handful of jobs.
The buttons for WAR's Fell Cleave/Inner Beast and Steel Cyclone/Decimation automatically changed depending on what Stance they're in.
DRG's Geirskogul automatically changes to Nastrond when LotD is activated.
RDM Enhanced versions of melee change automatically when enough mana is stored.
SMN Ruin II changes automatically when the proc is activated.