So the next stop after Marksmen's is Immobile Mages?
From what Meddler says " Immobile mages in particular are one of the classes we're thinking of tackling next and some item adjustments would likely be part of that process as with Marksmen/Juggernauts.”
Who do you think will be candidates of this rework? It's very clear for me.

Initiator + burst
Anti-siege
Initiator + DOT
I LIVE, I DIE, I LIVE AGAIN
high utility
Super long range + utility
Anti-ADC
Global presence
hyper scaling late game
Teamfight (Focus on DESTROYING THEM WITH EYEBEAM LASER)
GLORIOUS EVOLUTION (high slot efficiency, high value from items)
Long range, siege focused. What can we play up about Xerath that Ziggs doesn't have?
Lower range than Xerath, better teamfight. What can we play up about Ziggs that Xerath doesn't have?
... or even 