One thing we do know from looking at the date history/schedule (
click here) is that TSL EMM has been offered - with only a few exceptions - every Monday & Wednesday since it was introduced late Sept 2018. It has been a far more regular pattern than MK EMM has ever been. The only major variable has been Fridays.... we saw a run of them Nov-Dec and now again in March.
Since DHS is not 'typically' a park that gets pre-9am opening hours, my guess is they barrel on through the entire summer with Mon/Wed dates, eventually. Unless they are planning a run of pre-9am openings, like what they have done at DAK, for example, at times in the summer months in the post-Pandora era.
All speculation though.