I love the Shadowrun setting and I like many aspects of the rules, but there are WAY too many rules spread over too many books and they're overly complicated for no good reason. Any time I take a break from the game for 4+ months I basically forget every hacking rule and many magic rules. The vehicle rules are really cumbersome too. I really wish the game was a lot lighter on rules so the focus can be on gameplay and story. Having to constantly reference a book during a session or write down paragraphs of rules before a session or make up rules on the fly because you can't remember everything is just not ideal.
5th edition is definitely my favorite and I really like most aspects of it but learning the rules feels like a college course more than it feels like preparing to play a game with friends. If the new rule set is simple and doesn't make the gameplay bland, I'm going to buy it and use it. The main stuff I need from books is gear, skills, qualities, spells, ware and fluff. I really don't need rules upon rules. Look at D&D 5th edition, they made it so simple and it's really easy to dive into the game and even master the rules in a reasonable timeframe. Bottm line for me is that I play rpgs for the immersion, the experience, not for complex rule systems. This new product could be a huge hit for me, HUGE! I just hope it doesn't make the gameplay elements boring.