Here is my opinion
1. Don't worry about graphics being equivalent, PC will be a console port but with a chance at slightly better detail given you have the appropriate rig/power
2. PC already has insanely quick load times, so my guess is that it would not be an advantage on console. (My guess)
3. I don't think you will see modding capabilities like on PC, as the hardware will not likely support it (drive/folder/import wise), and because of licensing concerns. Console is the bear in regards to number of users, it is the LARGE majority of the consumer base, PC is just a very small portion of the consumer market. We can get away with certain things on PC (like adding hidden players, having exact looking players like Charles Barkley, Reggie Miller etc who were not officially allowed to be in the game, creating cyberfaces that look just like the real life counterpart using the players real face, etc).
I think player DNA was the next big thing that is similar to "modding", and they continue to add retro content and other content that is similar to the big mods we have on PC. However, obviously with licensing restrictions, the teams are not nearly as complete as what we can make them on PC (given the talented modders are on board making said rosters and changes)
Think about it, over the last few years they have added the DNA stuff, court creator, jersey creator, customizing of logos, moving your team to different cities, etc. I think overall they are doing as much as they can with the restrictions that they have. I dont think console will ever have the full modding capabilities of PC, but they have added "mod" like capabilities to the game.
What would be cool is: If they allowed a "scoreboard customizer", and the jersey/court customizing for offline use (outside of myleague). That would add a ton of value to the offline experience, and showcase the capabilities of the game even more (and the artistic abilities of users).
I think one thing that COULD be implemented is cross platform DNA sharing. A small gaming company (big ant studios) has cross platform DNA sharing in a game called AO Internatiinal Tennis. Say you create Pete Sampras on PS4, I could download your Sampras on PC and on X1. Say I make Sampras with a real cyberface on PC, you an download that on your console. Do I think it will go that far for a big company like 2K with all the exposure they have and different restrictions? No. But I think DNA sharing cross platform on consoles could be something they implement in the future.
Sorry for the long post, part of my response is brainstorming. We honestly have no way to know what the future holds, but the reality is: licensing, marketing, etc certainly factors in.
I fault nobody for staying with console, a lot of content still exists. For me, i have experienced the other side, and it's so glorious that I would have a lot of trouble going back. It will be interesting to see what they do with the next gens systems capabilities.