Let's say the Senate is tied after the midterm elections this November. How would you expect the races to play out? Feel free to discuss with maps if you are inclined.
In this scenario, I would expect that Republicans would still pick up Montana, South Dakota, and West Virginia with ease. North Carolina's Senate race would probably go Republican, as would the one in Alaska. Pryor and Landrieu, on the other hand, would survive their races in Arkansas and Louisiana (Landrieu would win 51% of the vote in November, and wouldn't have to go to a runoff - that is the only way I envisioned her winning re-election).
Victories for the incumbent party are shaded >50%, while pick-ups are shaded >30%.
Alternately, the Republicans pick up Iowa along with MT/SD/WV/NC/AK, but lose in Kentucky due to McConnell not being the sharpest campaigner, thus ending up with a net gain of 5 seats, resulting in a tie. Arkansas and Louisiana stay Democratic.
