It depends.
We have the quality to make top4 with Chelsea pooing the bed if we can bring how we played against Villa to the bigger sides
But other teams, not just the trad top 4 + Pool/Spurs, can now bring in big money signings on wages. See: West Ham, Palace, Stoke, Soton and even Leicester, who are owned by a rich family.
For as long as our board believe we are plucky Everton who think we can muddle through with (excellent) youth and bargain buys, the top half of the table will become ever more congested. I'm a huge huge fan of martinez's focus on youth, allowance of errors and style of play, but they cynic in me feels that he has no choice.