Feedback:
You guys are probably worried about the owners of the flag but, the attackers number will be way less than now so I'm pretty sure it will be easy to defend this tower.
As you can see in my two images (I'm the player with the black anbu mask) The two places i'm standing in are giving the owners of the flag a big advantage. Therefore, I think those two places needs to be widder. I have also noticed, when you get hit from any direction while standing in those two positions, you don't move from your place. This will make those two positions a big advantage to the defenders. So, maybe rather than widing those two positions, you could just allow the attackers to be capable of moving back the defender by hitting him/her from the bottom.
Furthermore, I think you need to reconsider the positions of the two crystals because, in the future you'll most likely see the attackers will be ONLY focusing on the first crystal (the one near the attackers spawn). This will make the second crystal (the one near the defenders spawn) pretty useless. However, if the defenders focused a lot on the first crystal, this Might allow the attackers to make an advantage of the second crystal.
In addition, I have noticed the defenders spamming their sword next to the flag room entrance which made it almost impossible to enter the flag room, especially when those blocks exist. I suggest you to make the flag room door a bit wider, this obviously mean the blocks number will be increased.
In this post I've only pointed out the over powered defensive techniques. Because the defenders spawn is close to the flag room, this made the tower one of the strongest just like the destiny tower. It was an amazing update! but unfortunately this won't make towering "more entertaining" because there is no "prizes" yet