So as it stands right now, with the upcoming patch, Burning Rage will be granting extra condition damage + range and burning for Sunspot instead of a 10% damage modifier.
The trait will also be moving to the master tier as a major trait, which means that it will be competing with Power Overwhelming as a choice for DPS builds.
Since there has always been a clear distinction in condition vs power based builds, my suggestion is this:
Instead of having to choose between 2 condition damage amplifying traits with overall very similar effects, it would be much better to roll the new Burning Rage changes into Power Overwhelming (with the numbers tweaked accordingly to avoid making the trait too strong) and to have Burning Rage grant extra power and improving the direct damage of Sunspot or allowing it to crit (as an example).
That way, in my opinion, the 10% damage loss is somewhat mitigated and there is a meaningful choice to be made between 2 traits with more flavor than before, depending on the build.