here in the UK it's less clear, dealer prices are currently
5D4 £3349
5DSR £3299
5DS £3099
5D3 £1999
6D £1399
if the 6D2 does the typical $1=£1 and arrives at £1999 it's a very different thing altogether
go to digitalrev and you have
5D4 £2459
5DSR £2159
5DS £2021
6D £999.96
so totally different again - if DR release the 6D2 at £1999... well if you're willing to buy from DR, not sure that you'd bother with a 6D2 at that price..
what sort of price the 6D2 settles to after a few months may make a difference, but only time will tell.
still, depends on what you shoot.. I'm sure the 6D2 will be better at some things - or be a better compromise.