While brands like Samsung, LG, Motorola, and Xolo already released Android 5.0 Lollipop to some of their smartphones, Lenovo is so late in this matter that it has just announced the names of smartphones which would be updated to the latest version of Android.
Lenovo will upgrade seven smartphones – Lenovo A5000, Lenovo A6000, Lenovo P70-A, Lenovo S90-A, Lenovo Vibe X2, Lenovo Vibe Z2, and Lenovo Vibe Z2 Pro – to Android 5.0 Lollipop.
These smartphones from Lenovo will receive the updates sometime in Q2 this year, so if anyone from you owns a Lenovo smartphone which is eligible for the update, you will receive it anywhere between April to June, and that's quite far from now.