I have worked with and hung out with people who have attempted this. I have even seen people who presented it as a defacto done deal, a complete new UI that was cool.
The only, and I mean only way that I have seen this work is that the marketing department saw it and lost their minds. They knew money when they saw it. Except that the higher ups within IT basically crapped their pants in anger. The last thing they wanted was some hero coming out of the ranks of their programmers. What next, a mobile friendly version?
So, assuming that you are not already a senior hoo haa then you can play career roulette; do a solid sample and show it to a few marketing people. Either you are their new best friend or the "product manager" will have set your corpse on fire.
BTW having new best friends in marketing can be very very powerful, but remember they are simplistic, irrational people. They want money and they don't want to work for it. They won't stick their necks out for you unless there is a buck in it for them. So when you show it to them hint that this won't happen without their supporting you. Then maybe, just maybe they will hoist you on their shoulders and carry you around the department. But they have the attention spans of a 5 year old so you have to pretty well drop one thing into their laps after another. No delays, no complicated stuff that requires explanation.
You want to do cool nerdy things, but the marketing department knows that cool makes them more money. Thus you must only look at it as cool things that make money. Leave the nerdy stuff out of it. When they ask, "Can you do it?" don't talk about code, APIs, legacy, or anything else, just say, "I will put some serious lipstick on this pig!!!" and then high five them.
If they don't high five you back then you are talking to the wrong marketing guys. Talk to the one in a midlife crisis who just bought a Harley. Remember you guys might have some vague notions that you build the product blah blah blah. But they are the guys who go out and hunt the big game, the customers. They are the guys who put food on the table so the cave women can make the pots. So when talking to them ask yourself, do I make pots, or I am I prepared to stab the bear with a spear?
As for this being a good idea. Making software intuitive and beautiful should be a no-brainer, yet so few so-called brains spend any time on it.