The news that Willingham likely will not be traded until after the trade deadline puts a damper on any quick promotion for Ortiz. If I were running things, I would add him to the 40 man in September after Rochester is done and give him some time as the 4th OF. Of course I also would have traded Willingham by now.
Ortiz has not been spectacular yet at AAA, but he is doing fine. I would envision his 2015 as a year where he makes it or starts to break it (it wouldn't be over for him if he struggled in AAA next year, but it would be close).
I still view Ortiz as OF support for some combo of Buxton, Hicks, Arcia, and Rosario. I really hope that the Twins just stop with this inane adding of marginal OFs from outside the organization. I have never understood it instead of giving your own a chance. Evan Bigley and Garrett Jones probably wonder that too.