Two (F.IHS) scenarios presented below.
First, the primary reference pattern, the situation could be similar to the historical pattern as pink circle indicated.
With the pink circle historical pattern, $spx made new uptrend high with 20 points (green) above the previous uptrend high, then had a 33 points (red) correction that matched the size of the left shoulder, and then rallied to make another 8 points (blue) new uptrend high to conclude the pattern, and then started the down trend.
Here, so far $spx made new uptrend high with 13 points (green) from the previous uptrend high. After current uptrend completed, should have a correction, possibly matched the size of the left shoulder, and then moves up to conclude current uptrend.
Second, the alternate reference pattern, as the purple circle shown.