Litecoin is going to the moon. The same deflation principles baked into BTC are baked into LTC. LTC is one deflation cycle behind BTC (one Halving behind BTC). So its VERY likely the LTC ratio (to BTC) will increase once LTC Halving occurs. Both LTC and BTC will be at the same rate of deflation for 1 year meaning LTC ratio to BTC will likely go way up.
That will give a one year window to convert to BTC for the BTC Halving in 2020.