You should be able to import MPEG2.ts files into Premiere Elements 13. You can import MPEG2.ts in Premiere Elements 12/12.1. Are you trying to import your .ts files in Premiere Elements 13 and are having problems? Premiere Elements 13 tryout or purchased?
If .ts files are a vital part of your video editing workflow, then best try your files in your version of Premiere Elements?
Or, is it that you have not purchased Premiere Elements 13 yet? If that is the case, then be sure to look at the free 30 day tryout download
of Premiere Elements 13 from Adobe before any purchase of the product.
Please let us know the outcome.