Worth noting that even thought Obama is not on the ballot in 16, I don't foresee a major shift in the district. The Democratic Presidential candidate will win it again handily and Dold will outperform the GOP Presidential candidate significantly.
The key is that Dold will outperform the GOP nom for pres
and the district will shift slightly Pub without Obama. It's the two factors added together that will help determine the outcome. Small changes in turnout can decide the race.
When you use the word handily, that has to be in the context of how the national campaign is going since PVI is measured against the national results. Let's say that the CD is closer to D+5 instead of D+8 without Obama. That swing would be consistent with other similar suburbs elsewhere around Chicago. Then let's say that Dold can outperform the GOP pres nominee by 5 points. In 2012 I think he beat Romney by about 7 or 8 points in his district, so 5 seems pretty reasonable. That makes the district even, so the district would need a winning Dem for pres to carry for the Dem candidate in the CD.