Tomatoe cultivars can be divided into two basic growth habits, specifically, "determinate" and "non determinate"
"Determinate" varieties will grow to a fairly predictable height at which point vertical growth stops......
"Non-determinate varieties will continue to grow indefinately or or at least until they run out of support, terminal height basically being limited only by environmental factors with the number one factor usually being how high you've built your actual tomatoe cages.