There still don't seem to be any plan changes. At this point, Fi is pretty expensive compared to competitors. Fi only makes sense if you are an incredibly light data user, you are one of the few people who both live in one of the specific areas in which network switching helps and have one of the handful of phones that can take advantage of it (the iPhone is not on that list), or you are a frequent international traveler. No one falls into that last category at the moment, but this eSIM support would potentially make that a slightly more favorable option for a future iPhone user who travels, but I doubt it attracts many new customers.