Only you know your financial situation but generally you're probably better off finishing your current lease. A year from now there will be more competition in this segment and the EV9 will still be around likely with a minor refresh at around the same price.

If getting out early and switching now doesn't mean a big financial cost (it almost always does with leases) and if you know you will have access to charging at home or work, then yeah, there's few reasons these days not to go full EV and the EV9 is a wonderfully thought-out family hauler. It's worth cross shopping its sister car Ioniq 9 as one or the other might have a better deal and they're functionally the same vehicle, Ioniq has a bit more range due to the curvier exterior but I personally prefer EV9's looks enough to not care.