Not necessarily.
When more and more transactions occur and blocks get bigger and bigger and often scratch the 1 mb limit, then "transaction space" within a block becomes more valuable. Soon only Transactions with fees will be included and as time passes, only the high fees transactions will be included.
Miners will get those fees so it is in their interest to keep them high by not increasing the block size limit and therefore creating transaction space scarcity.
Since miners are the ones that have a vote in the bitcoin network, the limit might not get raised at all or only in small increments while keeping fees so high that micro payments are out of question.
I'd be interested to hear what you guys have to say about that.
There has to be a way to make these transactions consume less space.