The Reserves' top scorer hit four goals in the recent 6-3 win at Newcastle to take his tally for the domestic campaign to 16 and he's already had a brief taste of first-team action in the New Year's Eve defeat to Blackburn.
Keane has ploughed a lone furrow in attack for Warren Joyce's champions following the departure of Mame Biram Diouf and loan exit for Federico Macheda and is continuing to learn his trade.
"Will's progressing the right way," the manager told MUTV's Countdown to Kick-Off. "He's a good finisher, the lad. I think he just needs a bit of toughening up. Next year, we'll possibly send him out on loan. He's got good potential."
Sir Alex is proud of Joyce's side for clinching their Northern title with games to spare and acclaimed the coach's decision to move Ritchie De Laet into attack at Newcastle.
“Unbelievable!" he exclaimed. "Warren Joyce is a tactical genius. Down 3-0 and he shoves De Laet up front and they win 6-3. I couldn't believe it. I don't know how they were 3-0 down but they recovered and they've won the league and won it well. Congratulations to Warren and all the lads. They've done well."