Not before the chip crunch is resolved.
Nintendo can't get more chips already despite being on a less critical node. An upgrade would invariably put the chip at the end of the waiting line of a smaller processing node with much more competing companies wanting chips in that node, which means much fewer would get produced than does currently.
As such, Nintendo is practically damned to wait even if they would have an upgraded Switch ready, as they can't get all the necessary parts for it.
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/