TVR or wait?

[jay3d]

Hello, I'm applying under CEC and I got my ITA already and I'm gathering all the documents, I have a TVR that is expiring in April and my work permit in December. I don't have plans to go out of the country in the next 6 months but who knows right?. so I was thinking in renew my TVR just in case I'll have to go out of the country. or do you guys think is ok if I wait until something happens with my PR? I'm from a country that needs visa so if my PR get approve I'll have to send my passport, so might I wait just a little bit? or even this could be a problem if I don't renew my TVR could this affect my pr process?.