They did actually announce that there will be not 1, but 2 new forms of tomestones. The first will be Tomestones of Law, which will have no cap, and 4 weeks after launch, Tomestones of Esoterics will be added, and will have the usual weekly cap. Poetics will likely become uncapped when HW launches, and Soldiery will more than likely be discontinued with the usual trade in option for whatever soldiery you have left.