Sheffield Wednesday, managed by former Iron boss Brian Laws, tabled a bid earlier in the week which could reach £1.5million, but this is set to be rejected on Wednesday.
United boss Nigel Adkins met with the 21-year-old striker on Tuesday, and admitted he would be powerless to stop the player leaving if he wanted.
But with a host of potential suitors, the lifelong Sheffield United fan is unlikely to be keen on a move to their fierce rivals Wednesday - if, indeed, he opts to leave the Iron at all.
Scunthorpe rejected two bids of more than £2m in the January transfer window for the forward, and his value will have risen still further following United's League One title win.