Quoted from pkiefert:

Finally caught up on some sleep after expo. I have a newsletter pending that will go out tomorrow. Nothing earth shattering was announced at Expo. We didn't even have a panel. It was mostly meetings with partners and potential partners while at Expo.
Here is a preview of the newsletter:
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- We are working with Matt at Back Alley Creations to spruce up some of the playfield. Matt has some awesome ideas that we can't wait to share and show off. One we've mentioned while talking to people individually is a better Hotel Lex building.
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- We've begun working with some really cool animation people (with very cool resumes) on the custom code side and we were hoping to show some of that off at Expo but we are not to a point where we are comfortable doing that yet.
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Quoted from pkiefert:

The playfield layout will stay exactly the same as the original. You will be able to play the original ROMs on the game too, in addition to an updated graphics/code version. Owners will pick when they turn the game on if they want to play the Classic version or the updated version.
Feedback on gameplay has been very positive, including from those that own or have played originals.

This is a reasonable question. Most of these items we are update/adding have little to do with the main development of the game. Meaning they do not affect the timeline. In fact, some may accelerate the time line. Adding updated code and graphics does take some time, but again, most of that can be done in tandem with pre-production of the game, so it's mostly overlap in project time, not extending it.

Most of the comments we've had as far as constructive criticism has been directed towards the art. Both the original art and the new art. With the original artwork there have been comments about the cabinet art and all of the grey on it. And there are those that have seen the updated art by Dave Christensen that hate that art.
Dave's art needs some cleanup and recoloring. As well as making the ladies on the art a little younger as Dave is in his 70s and drew them like the ladies his age.
The cabinet art we are looking at changing the grey by adding something like a Chicago Skyline. We are not sure if both sets of art will be available on all models, or if we will just do Daves art on a special edition or something.
Overall, all of what we look at as enhancements have to make sense. Meaning we are not just going to change something for the sake of changing something.
The gist of how we look at this game is that we don't consider it a "remake" since it was never released. So we are shooting for a good balance of respecting the original and also what would they have done differently if they built it today. These are mostly cosmetic changes as the playfield geometry and layout will be identical to the original. And you'll be able to play the original code as I mentioned before.
It helps that both the original artist Stan and the game designer Mark Ritchie are advisors on this project. As well as several original Kingpin owners.
We are very open to constructive criticism and welcome it.
Paul