If a pattern says end with the right side facing for next row, then yes, you should be working on the right side next.
If it says to end with a ws row, then, again, the rs would be facing for the next row.
If it says to end with a rs row, then you'd be working the next row as a ws.
It is confusing.
There could be a mistake in the pattern. If the directions for the next row is really a ws row, then work it as a ws row. You can check what comes after that, too, to make sure that a rs row follows.