Hm, that's weird idea. We have 50000+ topics ? It's impossible to include all of them in list. And this will not solve the problem with displaying on the 2+ page.
Also, few suggestions:
Widget "Where to show": All pages/page lists are not enough. I don't know IPS' features but I would be great to add "topic lists", "subforum lists", "topics in subforum lists". F.e. we need to show this widget in all topics from "Games" subforum.
"Contents" section in CP. I really miss options like "show content from last 3/7/30/60 days" or "show content with at least 5/10/100 posts".
Put comments/posts counter on slides ?