One form of price hike is reducing the amount of rooms that are discounted. For example, Mermaid rooms never get discounted. You pay rack rate. That's why people say AoA is higher, nothing to do with the family suites. So, a Pop price hike would be every room getting sold at rack, which I suspect will happen this year (edit Oct - Dec).As of right now, we can see the pricing for Pop, AoA, and CBR until the end of 2019. None of those resorts have a price hike beyond the usual increase all resorts go through.
If WDW is going to hike prices this year for those resorts because of the gondola and/or SWL, it'll be a bit too late since most reservations for the Fall will already be made.