That raises an interesting prospect.
Theres been a surge of ebike buying and useabe, as people hsve more leisure time while on furlough, or try to avoid public transport.
It won't last forever, and as things return to a new normal both sales and usage are liable to reduce.
Lack of use is not conducive to a long battery life, and we face the prospect of 3 to 5 years ebike batteries starting to turn faulty. This will lead to a lot of people being reluctant to either spend hundreds repairing a buke that cost them thousands, or then spend further thousands buying a new bike that may eventhally go the same way.
Outside for the more infomed, more hard core cycling community, this will imapct negatively upon the image of an ebike, and urban lore will be such that the wider public may then be reluctant to invest.
So, my prediction...
Short term, sales will continue, bit will taper off as the situation normalised.
Medium term, 3 to 7 years, batteries will expensively fail as described above, and this will in turn impact sales. There will be a sio in ebike sales and usage.
Long term, as the wider puvlic suddenly realise there arent enough materials to give a battery car to everyone who wants one they'll be looking at affordable personal transport once more, and ebike sales will rise qhain, less sharply but more sustained, a longer term rise.