With back to back release of firmwares and additional items to be covered via bugs.maemo.org, i really doubt that.
I dont trust any PR of any company as such, and i bought the phone for what it was described as on release.

Nokia releasing maps navigation for free was not something i had in mind while i bought it.

Infact i wonder what the people who bought the 5800XM navigation edition must be thinking right when they heard this news.