I think there won't be much in the next Road Map. There might be only kits even - unlike we're getting an EP in June already and not later in Summer. I was thinking they might have been working on Pack Refreshes before the pandemic and stopped working on them when the Pandemic hit for the time being - that could be the reason they didn't want to state whether more pack refreshes are to come or not.
Also, I've seen so many people buying kits on only one or two assets they love that I'm convinced EA are making good money out of them and have no incentive to stop releasing kits whatsoever.