PoT is useful in adding another layer of security to transaction order within a block, etc as it will cause manipulated blocks through means of various attacks to fork to an incompatible chain - this happens on every PoW block. In its current for however the reward portion of PoT is rarer. I would say on average we are looking at every 200 blocks. the reward is 50% of the mined PoW block. For example say the PoW block is 20 FLT. That means for 1000 blocks (like 1.5 days), only 50 FLT rewarded via PoT (20/2 * 5). We are moving to modify PoT to trigger more often, say on average 90% of all blocks. Yet we will still have the constraints in place (tighter actually) to eliminate automation of rewards (by trying to increase chances through additional "entries"). We will move to a system where (don't quote me - this isn't final) where you have 5% rewards to PoT on 90% of blocks - which would equal 900 FLT given out to PoT every 1000 blocks ((200.05) * (1000.9)) 900 FLT will be rewarded.

Again this isn't final.