What area are you in, and what sort of upload speeds are you seeing?
LTE-A can help with speeds in a number of situations, but as you are using a wireless network, the increase isn't guaranteed. It's possible that if your local tower was overloaded, the capacity has been increased, but the traffic has also increased to fill in the additional capacity, making speeds approximately the same.
My area is now an LTE-A area, but speeds have remained about the same. Traffic has shifted to more LTE bands thanks to Carrier Aggregation, but phones which don't support LTE-A are not seeing much improvement. If anything we've seen more 3G lately indoors than not. Since our area was never fantastic for speeds, it's more than likely the increase in capacity is being taken advantage of by the devices which can make use, thus proportionally adding additional load to the tower.
Also, keep in mind that LTE-A only works if you have a B4 and/or a B2 signal available, in addition to a B13 signal. If all you have is B13 (An app called LTE Discovery can help figure this out), you're not going to see any improvement on LTE-A unless enough tower traffic shifts off of B13.
Also, keep in mind that while Verizon generally doesn't have capacity problems with their backhaul to the towers, they don't give every tower 1+Gbps to allow for 200+Mbps speed tests. Many of the rural towers in my area have around 500Mbps going to them for a quad sector, tri-band site. You'll usually see around 30Mbps per sector per band because Verizon has capped the bandwidth per sector off, and still has to leave overhead for 3G/1X data.
