If you were thinking to yourself “what my PHP-based content presentation system really needs is an expensive backend from a company that has historically done incredibly poorly with PHP” then Microsoft has got your number.
Facebook has followed up their 2011 release of their PHP Virtual Machine (HHVM, aka HipHop) by releasing Hack, an HHVM-compatible statically typing version of PHP.
I like PHP (mostly because it’s an extremely rapid development language for the web, and also because academic Java snobs hate it so passionately) but static typing should be a fantastic improvement.