Thanks to Col. Hertford for this.
Could this be the Plastic Thunderhawk? It has noticeable deviations from the FW design (noticeably the tail fin which is a main part in all existing art.
The two plates on the side of the Cockpit look to be arranged subtly different to the FW one (where one seems to travel along the forward stability wing above by about 1cm and the other which goes vertically down). The possible redesign seems to have them both joining to the forward stability wing.
It looks like the forward Heavy Bolters could also be mounted akin to the Storm Raven.
Wings look sleeker and more dipped too. The forward access ramp looks sleeker and narrower at the top too, and the ramp grips at the bottom don't look as prominent.
We had been told at an event a while ago that it was possible and that GW were planning it, I just prey it is happening now.