I'm not a big fan of forecasting in stock analysis. Why? There are just too many moving parts and the further you get away from right now, the more variability there is. With each step further in time, the variability multiplies at an exponential rate.
NVDA was pushing a 170 to 175 trailing P/E at around the $300/share price. I've been tracking their profitability metrics for a long time. Their last fiscal year's metrics, while good, were nothing like the year before. So, in essence, their metrics are trending down.