I strongly hope that its not true. Here from DCS planed weapons and sensors from Hornet:
- A/G radar with MAP, EXP1, EXP2, EXP3, SEA, GMT, PVU, AGR, IRA, and TA.
So AG radar is on DCS roadmap for Hornet. Its main system, so I dont believe that they will cancel it. Yes, it may delay it, because they work on TGP and JSOW/GPS/INS now. But I hope in future we will have AG radar.