Telegram Open Network, Filecoin, and Polkadot are all expected to go live in Q4 2019. We recently added private market prices for these assets using a combination of internal estimates and industry sources. Because these tokens are not publicly traded, and in most cases haven't even been generated, these prices are based on private market bids and asks for tokens or the rights to future tokens.
At those price levels, and given the latest specifications available regarding their supply schedules, all three assets would be among the top 15 assets by Marketcap in 2029. With the addition of Algorand and Hedera Hashgraph, assets launched in 2019 represent one third of the top 15 assets by Marketcap in 2029.

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You can learn more about the supply schedule of those five assets in their respective profiles. Below is Filecoin Supply Curve, featuring a 6-year half-life block rewards schedule.

Given the large number of assets yet to be launched, as demonstrated by Coinbase latest announcement on the new assets it is currently exploring, and the very high pre-launch valuations observed, it is to expect that the top 50 by Marketcap will be largely transformed in the months to come.
