Two things we'll be making improvements to in the near future (although these aren't likely to make it in on time for 2.3) are having iceblock be trainable
冰箱 變成非天賦技 全系法師都會有
(to make sure all mages have it as a tool for pve encounters and to open up other trees as being more viable options for pvp),
原天賦位置會新增一個pvp取向的天賦
and to-be-finalized improvements to mana issues in longer fights.
We do plan to buff mana gems, although I don't see that as a "fix", just an improvement that needs to be made regardless.
法師的寶石的效能會再提升
It's a deliberate change. We initially felt like it was too quick at 30s and decided to test it out at 45s, but after playing with it for a while we felt like it opened mages to focus fire a little too much so we decided to keep it at 30s. It's worth pointing out that making changes like this and later un-doing them is not at all uncommon, it's just most of you generally don't see that process in action since it often happens before the patch even gets to the PTR.
Since I'm here, I'll also make a small pre-emptive strike against the incoming "what about other mage concerns!" replies I'm about to get and say the following.
Two things we'll be making improvements to in the near future (although these aren't likely to make it in on time for 2.3) are having iceblock be trainable (to make sure all mages have it as a tool for pve encounters and to open up other trees as being more viable options for pvp), and to-be-finalized improvements to mana issues in longer fights.
We do plan to buff mana gems, although I don't see that as a "fix", just an improvement that needs to be made regardless.