I played heroic leap in the 4.0 PTR and it sucked. Jump, people move, land, charge on CD gg.
it wasnt implemented due to people getting into wierd areas on maps, terrian exploits ect. and jumping from extremly high ledges and leaping befor landing with no fall dmg.
one question to anyone playing beta right now... can you Hleap up Z axis? like up on the BEM arena bridge, or dalaran sewers top section, or ROV pillars? I never tried this back in TBC. if it works It makes it slightly more useful.
Overall very lakcluster lvl 85 ability compared to, smoke bomb, wall of frost, life grip ect. Remove from charge CD would be slightly better but overall nothx.