Will migrants return any time soon?

Will developments in Myanmar lead to a sudden return of migrants from Thailand? I don't expect any sudden shift in the next 5 years, and only gradually after that point. On this subject, ChannelNewsAsia reports:

[Suu Kyi] called on [migrant workers] to return home. That call, plus the opening Myanmar economy, means Thailand could lose a large number of lower-skilled labourers... Myanmar is opening up and more job opportunities will be created for them, but if a large number of Myanmar nationals decide to go back home, it could cause a labour shortage for Thailand... another seafood wholesaler is more optimistic, believing that many will not go back if their employers have treated them fairly.