I am not up to date on IIS. I stopped using WIndows for public Internet servers a long time ago. However, if the Windows redirection is anything like the Apache httpd server proxying mechanism, yes, you should be able to have a single IIS server proxy for multiple Tomcat servers, and each of those servers can be on any machine that the IIS server can communicate with. Including, of course, the IIS server machine itself.
When it comes to destroying a civilization, gas chambers cannot hold a candle to echo chambers.