Replying to Olympus OM-DE M5 mark 2/3 question

So looking to get into a better camera for personal use. Use will be in adverse conditions weather conditions (possible snow, ash, dust/dirt).

The Olympus OM-DE M5 mark 2 with 14-150mm f/4 5.6 lens is going for $999.99 brand new is at the local camera shop.
For a weather resistant sealed camera and lenses it seems like a solid choice.

But here lies my problem, in researching sounds like sooner or later the Mark 3 will be coming out.
I really don't like the idea of dropping a grand on a camera that was released 4 years ago.

But what should one expect the price of the new mark 3 to be? Was looking to keep price total below $1000 but if the cost is not outrageous id consider it waiting.

Or should I be looking for something else all together? I'm not married to any brand just looking to keep under $1000ish.
Local shop also has Sony a6000 with two lenses (16-50, 55-210) for $750.00 (plus new bag and other stuff).

Thought and feelings?