Yeah the injury page on mlb.com still says "possibly week of May 15th" for Donaldson, but seems the following week (maybe the last weekend of May) is best case scenario.
This may be wishful thinking but I wonder if with these older players being out on the DL early in the season will be beneficial later on in Aug/Sept. with less accumulated 'wear and tear' that comes from playing regularly over a long season. If the team can keep inching forward in their absence, maybe they could still make a second half push?