Yes but in most games that release new content every now and then, the new equipment usually outshine the old and the old stay as they are. This is to entice players to go to the new content. There are still some old equips that are better than the new because some of the new suck but that's just how it is. They can't keep kicking up the damage cap on all the weapons with each expansion. For that reason, if house of wolves features a light cap increase, TDB equips will be stuck at 32. This isn't to say that the actual hard mode of the raids won't have better equips though.