And ... Not forgetting that the client (any) will not know where your new location is ... as you get a new, random, location value(s) every time you switch* to a new location.
*jumping to HF/Villiage/etc or entering/exit cave/house/etc.
I'm sure there is 'a way' to refill the Map-View with some previously map images (Ender or other Modded Client). But it probably involves some serous coding and smart logic to make it work in a acceptable way for the Client. (for a relative minor improvement, in my view.)