Is there a plan to include key-modifiers such as [Alt, Ctrl, Shift] and cast-sequence in macros?

Exmaple:
Macro 1
/ac [mod:ctrl, @target] "Cure II"; [nomod, @target] "Cure"

Macro 2:
/ac [nomod, @focus] "Fire"; [mod:Left-ctrl, @focus] "Fire III"

Macro 3 (Cast spells in-order with each key press):
/ac [castsequence, @targettarget] "Blizzard III", "Thunder II", "Blizzard"