Manchester City are on their way to make triple by winning the Champions League as well. Guardiola is having his best season with the team right now depending on whether they win the Champions League finale as well. On paper that game is also clearly winnable for the Manchester team. It is all about not underestimating their opponent even a bit.
Guardiola's target has been to win the Champions League title with this team all along. He hasn't been intending to leave without achieving it. If they win the title officially then I wonder how long we will be able to see Guardiola in his job right now.