Hi there,
Unfortunately without knowing what licensing terms (if any) Wizards makes available for publishers like us and D&D5, we can't answer this one way or the other. Even with the character creation rules for D&D Next being free, if they're not licensed in a similar way to the d20 and Pathfinder reference documents, we won't be able to provide Hero Lab implementations of those rules.
We're waiting to find out more about Wizards' plan for licensing D&D5 - when we do, we'll be able to provide more clarity here. Until then, it's possible that users could put together they're own data files for D&D5 using the Hero Lab authoring kit, but unfortunately we'll be unable to.
Hope this helps!