Well, a month of MLB service time does not amount to too much if you plan on bringing him up in June or later next year. the trickier thing would be if you planned on bringing him up in May or earlier. 30 days service time would tack onto 142 or more next year and give him a full season allowing him to be just above 6 years service time in after 2018 rather than 2019.
One thing the team has shown a willingness to do is to call top prospects up who are going to be super 2s (JZ, Storen, Harper). I don't think the team would fear him being a super two, so I don't think this would delay a call up to August if he is ready and needed sooner.
My guess is that this would be a "go for it" kind of move. If they think he can help, maybe even rest a vet, then I think they may do it.
