The "Iphikratean reforms" are like the "Marian reforms" in that an individual was given credit for a series of reforms across a period of time, or rather a more gradual change than we are led to believe. Both Marius and Iphikrates did make changes, but not drastic ones.

Epaminondas was a part of this process - he changed the spear length a bit, and switched to a linothorax. Iphikrates lengthened the spear even more, and replaced the bulky helmets. The Galatian influence of the 290's led to changing the shield to the lighter thureos.

Our "Iphikratean" style troops don't really appear until about 270, when the shield is changed. Before that they appear similar to the in-game hoplites, though without the silly crests, of course.