Hmmm we cud end up with two 4 tier combos starting with heavy thrust, for example:
HT>DIS>CT>4TH
HT>VT>FT>4TH

that removes 3 GCDs=ID, TT and Phleb
HT would have to be reduced to about 10 seconds and maybe have its positional changed to the rear
thats my theory anyway but who knows could be anything i just hope they keep the rng of wheeling and fang