It’s very easy to land on Antarctica. Snow is just a flat hard surface in game and it’s pretty much flat everywhere.
I would like to see China in the game. In my world tour, China had the worst (no) detail for the biggest regions. Siberia is mostly just low res sat data as well but not many people there.
As an Aussie i’d love it to be Australia/NZ, but looking at where the last WU’s have been I think it will be either Spain/Portugal or Italy.
I agree, an update with Spain/Portugal including the Canary, Madeira, Azores and Balearic Islands would be great.
I’d like to see Africa and South America…or anywhere 
How about the 9th largest city in USA having photogrammetry?
Dallas Texas needs to look good.
China and Korea!
Dominican Republic/Cuba/Puerto Rico/ St Maarten/ Jamaica
I would love to see Australia / New Zealand as an update because it would be awesome to check out the national parks and fly low level checking out things like checking the Great Barrier Reef in the icon a5 (plus I’ve been very curious About those two countries) once helicopters come out they should also do a Lord of the Rings tour of New Zealand for the Discovery flight plus sailing is really good out there (congratulations New Zealand for beating us in the 2020 American Cup Sailing series) with all the mountains and oceans there has to be awesome thermals to glide in also out there
Sri Lanka please.
The moon Lunar Lander Expansion Pack
Thailand, Malaysia & Vietnam
I’d love to see Iberia (Portugal and Spain) and Brazil in the future world updates.
DACH is next world update (6)
I have gone back to using P3d photorealistic add ons as the Southern hemisphere in MSFS is so ■■■■. It’s full of too many trees and the mesh is shocking.
Enough of the Northern hemisphere already Asobo and please at least clean up Australia and please give us an option to reduce the number of trees. The tree canopy is over the top and does not represent semi arid landcapes.
The Iberian peninsula of Spain and Portugal along with their Islands gets my vote, along with Italy and Greece if possible.
In the spirit of fairness though, Europe has had more than its fair share of updates, so perhaps another part of the world could be given the makeover treatment.
Australia and New Zealand probably deserve a bit of TLC from Asobo based on my very brief forays into these areas, as would Canada.
The Far East, Middle East, Eastern Europe, South America and Africa will probably need some work a bit further down the line.
Kiribati … Pacific Ocean !
I hope they continue across Europe and now its time for further east and countries that currently have only limited default scenery data
Canada.
Maybe pacific islands too.
Spain and Italy
I cannot see an Australian update doing much, we are too flat for mesh to matter, the trees are NEVER fixed in any world update and the water mask work to fix the Barrier Reef is probably beyond what the Asobo team is currently capable of taking on 
Plus we have already had a SE Asian update, South America is probably a good candidate.