I think the arena is a better use for the current city owned land. Their options of moving or not moving the depot still involved using all that land up for this intermodal facility. While it is needed, it's just not a destination place to attract people. It's really just a transportation hub and could be downsized to a smaller plot of land. Moving the arena site is a little harder because now all that benefit of having existing parking close by starts becoming not so close. They accepted federal funds to assist with the depot upgrades and they really don't want to send that money back if they don't end up using it as the transportation hub depot. So I think the options are still keep it there next to the arena site or move it to the smaller lot 40. Personally I think it sucks to have your train depot be 500 feet away from the rail tracks, but it's not my decision. I think I would work with Inland and get creative with ideas. Maybe even use the one of the old railyard buildings like the one at the far eastern end and renovate that into your new hub depot. Then turn the existing depot into a retail/resturant site.
And to further complicate this, I have a nagging suspicion that the current arena parking proposal with maybe 100 spots next to the building is just not going to fly. They will want about 1,000 to 2,000 premium spots adjacent. That could be under the I-5 freeway or in the current depot location. If you want to see where the future battles on this facility are going to be waged, this is as good as any.