Very unlikely that Dems can get the senate. Assuming that Doug Jones loses his seat (quite a safe assumption), Dems need to win 4 seats to have a 50-50 senate. Hickenlooper will flip Colorado, but Dems then need to flip another 3 seats. Susan Collins is very vulnerable, but she played cards rights to vote for witnesses, and she has been in Senate for 22 years, so it is quite unlikely that she will lose her seat despite her being temporary not popular (cause of Kavanaugh vote). Georgia has both seats in play but is it a leaning Republican state. Arizona has a seat in play, but can Dems win another seat in a leaning Republican country? Then there is Texas, but I just cannot see it happening, even a strong Dem candidate couldn't unseat an unpopular senator (Cruz), I don't think some random challenger will unseat Cornyn.
So, it is quite bad. Not as bad as 2 years ago, but still I cannot see Dems getting the senate until 2022.