We will see hows this goes but I think it may be 2013 before we see it. My reasoning behind this is that OMAP Moto's (RAZR and the like) get updates first and in the past the OG Atrix gets the latest updates for Tegra2 based devices (Atrix/Electrify/Photon). For example the Atrix has had 2.3.6for months which we never got. Taking that into consideration, the ICS update for the OG Atrix has only ten days before it is late (July, August, September)
To me Moto ICS is a bait and switch. "Here, have ICS! It will only cost Webtop and the 1.3GB that Webtop takes up!" Yes, you will not get that 1.3GB back (in the case of the Atrix2 is was more like 2GB).