The County Auditor will announce when the revaluation is complete and the records available for public inspection. If, at that time, you feel that your appraised value is more than what your property would sell for, you have available a number of steps in an administrative appeal process (without spending money or going to court). There are informal hearings with the appraisers, formal appeals with the County Board of Revision, and with the State Board of Tax Appeals.
If these fail, the case could still be taken to court. However, the law requires that you pay as billed, even if you appeal (you receive a refund if it is reduced). Otherwise you would be subject to late charges, even if you received a reduction.