This could be interpreted as a bad sign for Michigan's shot at getting DJ Wilson back:
It appears D.J. Wilson will not be participating in 5x5 play at the NBA Draft Combine. pic.twitter.com/FYWuFZHJSh
— Brendan F. Quinn (@BFQuinn) May 11, 2017
Someone who thought he needed to change something to land in the first round would likely be playing. Brendan Quinn points out that Wilson might have a minor injury or other malady and he might be protecting his draft stock by not offering scouts less than the full DJ, but it is MGo-consensus that this is not a great sign.
Quinn also has an article on the increasingly late decisions that top-end players are making that is relevant to your interests:
This means that until recently, roughly one-third of the top 2017 recruits in the country were still available for the 2017-18 season. ... The trend is unmistakable. Top prep basketball players are using their leverage to wait out coaching changes and roster attrition before choosing their schools in the 11th hour. Given the power structure of college athletics, it's difficult to blame them. By waiting as long as possible, these players assure themselves an alliance of convenience before matriculating.
The current state of the NBA draft is a major driver of this trend. Since the drop dead date has moved so far back it has correspondingly moved back decisions.
A potential silver lining here: Mo Bamba is one of the players still waiting, as you no doubt know. Now that Texas's Jarrett Allen has signed with an agent, Michigan is the only one of Bamba's four finalists still waiting on a decision from a big. (Duke PG Frank Jackson and Texas PG Andrew Jones are still on the fence; all other UK/Duke/Texas early entrants are in for good.) If Michigan wasn't a potential landing spot he could pull the trigger. Hopefully a Wilson entry would make Michigan attractive enough to get Bamba. That's the ticket.
UPDATE: Consider the source, but:
Sources in Chicago tell us D.J. Wilson is not participating in the workouts because he is banged up ... no other reason.
— Chris Balas (@Balas_Wolverine) May 11, 2017
Team-based reporters are often more optimistic in these situations than national types, and the timing here is suggestive.
UPDATE II: This on the other hand is specific and from non-affiliated writer.
Michigan's D.J. Wilson pulled out of 5 on 5 portion of NBA Combine due to an injured quad, allegedly. Canceled a private NBA workout also.
— Jonathan Givony (@DraftExpress) May 11, 2017