There will be a canon map of the Free Cities in A Dance with Dragons, and further canon maps of parts of Essos will appear in The World of Ice and Fire due a few months later. So I strongly recommend any mapping of the eastern continent waits until then.
Given the pace of development here just on WTW itself, I would say it's unlikely we'll have even finished WTW by the time those books come out, especially given our current lack of skinners.
Also, and I'll try to be as non-spoilery as possible here, we definitely want to wait until ADWD is out before we do any kind of military campaign based around Dany's adventures, as: