I really wish the provincial and federal governments would commit to upgrading Highway 16 between Edmonton and Jasper. If the province expands the roadway and limits access through Gainford, twins the bridge through Entwistle, builds bypasses around Edson and Hinton and twins the highway up to the park gate, you could drive from the Henday to the park gate in 2.5 hours if these upgrades were coupled with the speed limit increase to 120. (Knowing Alberta drivers though, everyone will go 130 and save 12 more minutes).
Then, if the federal government twinned the highway from the park gate to Highway 93 and added wildlife overpasses and fences, the speed limit could be bumped up to 90 or 100. It only reduces the travel time by a few minutes, but it will significantly improve the reliability of the highway (mitigating impacts from summer traffic, wildlife crossings, bad weather and rockfalls). All-in-all, you could shave off an hour from the current 4h-trip and significantly improve the reliability of Highway 16 year-round. A portion of the 93 is shut down as I type this, and recent closures for avalanche control forced last-minute changes to my latest hiking trip, so having that reliability for locals and tourists is no joke. Plus, it would be easier for Edmonton to market itself as a landing spot for tourists going to the mountains and take a big load off the Trans-Canada (horrendous traffic!!!!).