If you need stuff now (i.e. this year), use existing tools. There is always going to be something newer or shinier in the future, so don't put things off because something cooler is due Real Soon Now.

Perl 5 is not going to suddenly disappear. It will still do all the things it did before. If you're like most people, you'll end up re-writing your application anyway. If Perl 6 is around you can use that then.

Good luck :)