The EI for SE for 2018 was 4200. In 2017 it was 3900 and it went straight up by 300. I want to apply for fall 2019 and my EI is 4350. Is there any chance that the EI would remain constant and not increase drastically as it did before.
There is no guarantee that the EI will not continue to rise over the next few years, however you are above the current EI so worth your time to apply. As the popularity and competitiveness for SE and CS majors continues, there is a strong chance it will continue to increase.
For this reason, you need to apply widely to SE/CS programs and make sure you have at least safety schools on your list.