Yes, It may! Home value depends on various factors for example economy and demands. So if any variable factors change it may increase or depreciate the home value. 

Home value calculated on various factor. So without analyzing all the factor we cannot conclude any result. 

Broker is a service provider. That helps you find the perfect home, take care of all the documentation process. In return the charge you a small commission of your property value. Commission percentage may vary. 

Hence, It is a bank process. So, we are not authorized to commit any time frame. But in most cases loan process is getting done within 1-4 weeks.