Remodeling your house will increase the value and when the tax appraiser comes by they will reassess your property value higher and most likely your taxes will increase.
That's for the outside but can apply to the inside if you had to get permits to do remodeling on the inside.
An appraiser will most likely want to come inside and look at what you improved and will increase your taxes as a result of that too.
I'd only do the improvements if they really are needed.