I thought this might be a good idea to contain all of the discussions between the seasons here.
Russia is looking at their cross-country ski team to see if anyone wants to try biathlon. The article I read was specific about the German women's team as an example.
An idea. What about a South American Championship in July? It would give teams a chance to get on snow and check their progress. Have it about three weeks prior to the roller ski championship.
That's too early
It's always in August or September, usually in Bariloche (ARG) or Portillo (CHI). For this year if I'm looking at the schedule right, 8-13 August it's in Portillo and 19-23 August it's in Bariloche (it's held in two separate stages).