Daha çok ön çalışmalar yapılmış daha çok işi var gibi anladım ben ama, kesin bilgi varmı resmi olarak v6 için?
Komple MVC ye geçiş yapılacak mı yapılacaksa eski temalar gümleyecek çünkü

Hatta modüllerin bile gümleme ihtimali var, çünkü Laravel gibi bir framework e geçileceğini duydum.
Maalesef... Ama sanmam modüllerin patlayacağını gene hooks üzerinden işlem görücekler iç kodlarda karışma olmadığından outer lara hiç karışmazlar.
Alıntı
Composer is just one of a number of really good advancements to come along for PHP development community in recent years. Created by Nils Adermann and Jordi Boggiano, Composer allows us to utilise components and libraries from other projects and frameworks, which allows us to significantly reduce development time, whilst ensuring we're using quality tried and tested code, as well as giving developers, who work with WHMCS, code and API's that they will likely be familiar with. So far we're using components from Symfony, Laravel and a number of other specific packages used throughout the PHP community for their stability and power.
Next on the list was future planning for the deprecation of PHP's original MySQL functions, and with that in mind, we made the decision to commit to using Models driven by an ORM. After much testing and debate internally, we settled on using the Laravel Eloquent ORM aka Illuminate Database. This makes interacting with the database much easier, and will hugely simplify working with the WHMCS backend database in add-ons, custom reports, and many other ways.