It would be great if your predictive numbers were accurate, but Jarrell is a bit far from Austin proper as @Ryan Kelly mentioned.  

After that it's almost impossible to predict without knowing:1 - Where you're investing2 - How much you're working with3 - What your financial goals are4 - What strategies you know5 - Which strategies will work in #1 above6 - What types of properties you are investing in

To be clear, nobody can predict where interest rates will be at in the future so there is no guarantee 4% is where you'll refinance at.

But first, I want to highlight the limitations of return calculations.Return Calculation LimitationsReturn calculations only predict how a property is likely to perform on the first day under ideal conditions.

Very interesting predictions from Fannie, Wells and the MBA.

This was a predictable occurrance month-after-month with Flex, after the 1st 'decent' year with them.

Not saying what you're predicting won't come to pass, but everyday provides new opportunities for people in the government to either get it right or make huge mistakes that ripple through the rest of the world. 

I predict much of East Oakland will be see real estate change in 2017.

Passive investing with a pro is a great way to protect against downside risk and provide predictable returns.  

I get clued into their understanding about current trends and their predictions of future demand based on how much land they are buying, where they are buying it, and what size and style of housing they are building.I look at financial news.