I had a huge detailed post written up about 6 months ago with ideas for alternative resource systems, but the reason I never posted it is because I wasn't really sure if TP was the problem for me, or if it was the combat in general. Now, I don't think TP is the problem, but rather class design. As others have pointed out, I'd rather see classes that use the resources we have in unique ways, maybe a class that spends HP to use spells, but can restore HP with TP, or classes with spells that costed TP instead of MP (think Dancer from XI).

Alternatively, since I think the major problem for me (a main mage player), is that on casters TP is useless and just wastes space on the UI. Perhaps a unique system for DoM could be a fair compromise, while experimenting with the aforementioned ideas (or others) on DoW classes.