I'm with Chiangnoi...
The ER6 and Versys are two very different bikes styles of bikes...
A lot of potential Versys customers may have bought ER6s a year or two ago, or would have in the future, as the ER6 was the closest to what they want that was available, and will now change... So basically, you had people that were 90% happy to get an ER6... but you alot had people from who are 100% happy with an ER6, who would have only been 90% happy on a versys...
I reckon now some of the ER6 customers will migrate, (it might even seem alarming at first) but I think you will find the Versys will bring in customers of it's own, who might have stayed with an older bike (i.e. Africa Twin or Tennere), or relucantly bought a BMW, or might have desired a Versys style bike, but not been able to afford a BMW...
ER6N, ER6F, and Versys happily co-exist in the Australian market...
Cheers,
Daewoo