I too would like to see green, it is lacking in the AFL jumper landscape/.
I do think there needs to be a mix of nostalgia that people can relate to but also a new and original identity. For this reason I'd probably keep the old 'map' jumper associated with state of origin and create a similar jumper with a slight point of difference.
Would actually love to be a fly on the wall in these creative team meetings, I'm sure they can do a better job than GC.