How likely is it for me to develop left ventricular hypertrophy from my wolff parkinson white syndrome? i have many svt episodes, heart rate 175-200.

See an EP doctor: Symptomatic WPW -- i.e. multiple SVT episodes -- is a good indication to consider ablative therapy. Ablation is often "curative" for WPW and SVT and should be considered. It is also pretty safe in good hands with a low risk of complications As to your question, long standing rapid heart beats like SVT can weaken the heart muscle, not cause hypertrophy.

WPW and LVH: Unless there is some other associated disorder WPW and LVH are unrelated. WPW can be cured by a catheter ablation especially with symptoms and tachycardia. You should be evaluated by an electrophysiologist.