Increasing the size would be fine. It is not really what I or any of my friends want. Like the OP, we want new different effects. Just like was already said, many current action and spell effects are simply recycled. We would like new effects created for variety. New weaponskill animations to increase variety is needed as well.

On the topic of effects. There is currently no effect associated with "resurrect". I would much rather see new effects added than the current effects' size increased.