It could if "kuhama" is euphoric and en masse.

It might not be so simple to quantify initially because it could be a scaling down instead of migration for some users. For example some might choose to keep mpesa while using a different provider for voice and/or data or vise versa

Safaricom Moi Avenue, usually packed like a probox is now empty

Safaricom home fibre optic Internet has passed more than 90,000 households, a milestone that has enabled the telco to grow its residential network penetration to 27 per cent since its launch in February.
The firm has, however, only managed to connect 28,000 homes.

http://www.businessdaily...75806-dac79az/index.html

Safaricom should try match Airtel Data price. The difference in prices is staggering yet they have so much headroom to adjust the prices. Many people are becoming price sensitive to data charges