Has Arizona even turned a spade of dirt regarding the I-11 poroject? Sounds like I-11 will disappear at the AZ line or just over the bridge.
In a way, the entirety of their US 93 work between I-40 and Wickenburg has been I-11 work – first twinning the road, with the next phase to add exits. I don't think we'd even be having an I-11 discussion if ADOT hadn't been twinning 93.
There are a couple of major issues with turning 93 between Wickenburg and I-40 into a freeway, as opposed to just a 4-lane divided highway: A couple dozen (at least) ranch turnoffs and the town of Wikieup.
The ranches will still need access, but I don't see any way to build ramps for what are essentially single properties -- not cost-effective. They'd have to remain at-grade intersections. IIRC, this is how they are (or were, last time I was on it, in 1994) on I-40 in Texas.
Plus, a freeway would turn the already-depressed Wikieup into a ghost town. Most of the town is already dead, but there are a couple of restaurants and a good souvenir shop that do good business. Bypassing it would kill it.