While I appreciate your opinion, why do you believe the HD4600 will NOT be in the Mac Mini? All you state is that Apple will want to make the Mini inadequate?
Right now, all Haswell processors that I am aware of will come with the HD4600. Sure by the time the Mini is released the GT1 and GT3's will be out, but look at Ivy Bridge. The HD2500 based processors were out but Apple still chose to go with the HD4000 based processors did they not? You said, you did research, so I'm just interested to know what research made you come to the conclusion that they will be GT1 processors?
Sorry, I put in the word "not" when it should not have been in there.
Sure. As soon as apple could remove the discrete graphic from the mini, they did. Prior to that, they made sure the graphics in the mini paled in comparison to the iMac. The last two iterations of the mini could not hold a candle to the iMac with respect to graphics, do to the lack of discrete graphics. Thus, apple pushed you to the iMac if you wanted to do any intensive graphics applications *cough* gaming *cough*.
When it comes to Haswell, there are really only two option for non-discrete graphics - GT2/HD 4600 and GT3. GT2 is an iterative progression, like 3000->4000. GT3 is supposed to be a large jump forward in performance. Given Apple's desire to make the mini NOT as compelling as the iMac, the GT3 will not appear in the mini, or will be a BIG$$$ upgrade option on the 1st release of Haswell chips - IMHO.
Given apple's desire to make everything paper thin, even though there is no obvious benefit(new iMac design), a Mini that can have it's RAM upgraded, HDD upgraded, and with a GPU like GT3 for under $999, would be a compelling machine. It would be an amazing machine I would buy in a heartbeat. Thus, it will never happen.
Apple does not want that to happen. Don't believe me? Look at the history of the GPU in the mini. It says it all with respect to what Apple wants the mini to be.