I saw a bloger's post where it was written:
It looks like he would be on the East coast, when I am there.
I wonder if it's correct to use would instead of will? If it's correct what is the rule it is then? Explain it please.
That is a common expression.
It looks like he would X.
X is a future event, which is probable, but not certain.
Much the same meaning could be conveyed by:
It looks like he will X.
The "would" from emphasizes the uncertainty, although "it looks like" expresses uncertainty even with "will"